{"id":823,"date":"2015-02-02T12:24:13","date_gmt":"2015-02-02T12:24:13","guid":{"rendered":"http:\/\/bestkora.com\/IosDeveloper\/?p=823"},"modified":"2015-10-14T17:43:15","modified_gmt":"2015-10-14T17:43:15","slug":"lektsiya-2-cs193p-winter-2015-bolshe-xcode-i-swift-mvc-chast-2","status":"publish","type":"post","link":"https:\/\/bestkora.com\/IosDeveloper\/lektsiya-2-cs193p-winter-2015-bolshe-xcode-i-swift-mvc-chast-2\/","title":{"rendered":"\u041b\u0435\u043a\u0446\u0438\u044f 2 CS193P Winter 2015 &#8212; \u0411\u043e\u043b\u044c\u0448\u0435 Xcode \u0438 Swift, MVC. (\u0447\u0430\u0441\u0442\u044c 2)"},"content":{"rendered":"<p><b>STANFORD UNIVERSITY: \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430\u00a0<\/b><b>iOS 8<\/b><b>\u00a0\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0441 Swift CS193P<\/b><\/p>\n<h2><strong><strong>\u00a0<\/strong><\/strong>\u041b\u0435\u043a\u0446\u0438\u044f 2: \u0411\u043e\u043b\u044c\u0448\u0435 Xcode \u0438 Swift<\/h2>\n<h2>\u041f\u0440\u043e\u0444\u0435\u0441\u0441\u043e\u0440 \u041f\u043e\u043b \u0425\u044d\u0433\u0430\u0440\u0442\u0438 (Paul Hegarty)<\/h2>\n<p>\u041b\u0435\u043a\u0446\u0438\u044e \u043d\u0430 \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u043e\u043c \u044f\u0437\u044b\u043a\u0435 \u0438 \u0441\u043b\u0430\u0439\u0434\u044b \u043c\u043e\u0434\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u043d\u0430\u00a0<strong>\u00a0<a title=\"Developing iOS 8 Apps for iPhone and iPad @ iTunes\" href=\"https:\/\/itunes.apple.com\/us\/course\/developing-ios-8-apps-swift\/id961180099\" target=\"_blank\">iTunes \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u201c2. More Xcode and Swift, MVC\u201d<\/a>.<\/strong><\/p>\n<p><b>\u042d\u0442\u043e \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435: 2 &#8212; \u0430\u044f \u0447\u0430\u0441\u0442\u044c \u043b\u0435\u043a\u0446\u0438\u0438 (30 \u043c\u0438\u043d\u0443\u0442\u0430 &#8212; 44 \u043c\u0438\u043d\u0443\u0442\u0430 ),\u00a0\u043a\u043e\u0434 \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u043d\u0430\u00a0<a href=\"https:\/\/github.com\/BestKora\/Calculator-cs193p-2015\/tree\/Lecture2\/2\">GitHub.<\/a><\/b><\/p>\n<p><b>\u041d\u0430\u0447\u0430\u043b\u043e: 1 &#8212; \u0430\u044f \u0447\u0430\u0441\u0442\u044c \u043b\u0435\u043a\u0446\u0438\u0438 (0 &#8212; 30 \u043c\u0438\u043d\u0443\u0442) &#8212; \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f <a title=\"\u041b\u0435\u043a\u0446\u0438\u044f 2 CS193P Winter 2015 \u2014 \u0411\u043e\u043b\u044c\u0448\u0435 Xcode \u0438 Swift, MVC. (\u0447\u0430\u0441\u0442\u044c 1)\" href=\"https:\/\/bestkora.com\/IosDeveloper\/lektsiya-2-cs193p-winter-2015-bolshe-xcode-i-swift-mvc-chast-1\/\">\u0437\u0434\u0435\u0441\u044c<\/a>,\u00a0\u043a\u043e\u0434 \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u043d\u0430\u00a0<a href=\"https:\/\/github.com\/BestKora\/Calculator-cs193p-2015\/tree\/Lecture2\/1\">GitHub.<\/a><\/b><\/p>\n<p><b>\u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435: 3 &#8212; \u0430\u044f \u0447\u0430\u0441\u0442\u044c \u043b\u0435\u043a\u0446\u0438\u0438 \u00a0(Autolayout , MVC) (44 \u043c\u0438\u043d\u0443\u0442\u0430 &#8212; \u043a\u043e\u043d\u0435\u0446 ) \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f <a title=\"\u041b\u0435\u043a\u0446\u0438\u044f 2 CS193P Winter 2015 \u2014 \u0411\u043e\u043b\u044c\u0448\u0435 Xcode \u0438 Swift, MVC. (\u0447\u0430\u0441\u0442\u044c 3 \u2014 Autolayout)\" href=\"https:\/\/bestkora.com\/IosDeveloper\/lektsiya-2-cs193p-winter-2015-bolshe-xcode-i-swift-mvc-chast-3\/\">\u0437\u0434\u0435\u0441\u044c<\/a>,\u00a0\u043a\u043e\u0434 \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u043d\u0430\u00a0<a href=\"https:\/\/github.com\/BestKora\/Calculator-cs193p-2015\/tree\/Lecture2\/3\">GitHub.<\/a><\/b><\/p>\n<p>\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u0437\u0430\u0441\u0442\u0430\u0432\u0438\u043c \u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0434\u0440\u0443\u0433\u0438\u0435 \u043a\u043d\u043e\u043f\u043a\u0438 \u0441 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f\u043c\u0438. \u041c\u044b \u0432\u0438\u0434\u0438\u043c, \u0447\u0442\u043e \u0432\u0441\u0435 \u043e\u043d\u0438 \u043f\u043e\u0434\u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u044b \u043a \u043d\u0430\u0448\u0435\u043c\u0443<\/p>\n<p>[js]<br \/>\n@IBAction func operate(sender: UIButton)<br \/>\n[\/js]<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-3.57.22-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-827 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-3.57.22-PM.png\" alt=\"Screen Shot 2015-02-02 at 3.57.22 PM\" width=\"1604\" height=\"616\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-3.57.22-PM.png 1604w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-3.57.22-PM-300x115.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-3.57.22-PM-1024x393.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-3.57.22-PM-500x192.png 500w\" sizes=\"auto, (max-width: 1604px) 100vw, 1604px\" \/><\/a><\/p>\n<p>\u041a\u043e\u0434 \u0434\u043b\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 &#171;<strong>x<\/strong>&#187; \u043f\u043e\u0432\u0442\u043e\u0440\u0438\u043c \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043e\u0441\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0439<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-4.07.31-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-828 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-4.07.31-PM.png\" alt=\"Screen Shot 2015-02-02 at 4.07.31 PM\" width=\"1220\" height=\"784\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-4.07.31-PM.png 1220w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-4.07.31-PM-300x193.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-4.07.31-PM-1024x658.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-4.07.31-PM-467x300.png 467w\" sizes=\"auto, (max-width: 1220px) 100vw, 1220px\" \/><\/a>\u041d\u043e \u044d\u0442\u043e \u043e\u0447\u0435\u043d\u044c \u043f\u043b\u043e\u0445\u043e\u0439 \u043a\u043e\u0434 &#8212; \u00a0\u043c\u0430\u0441\u0441\u0430 \u043a\u043e\u0434\u0430 \u0434\u0443\u0431\u043b\u0438\u0440\u0443\u0435\u0442\u0441\u044f, \u0438 \u043b\u044e\u0434\u0438 \u0440\u0435\u0448\u0430\u0442, \u0447\u0442\u043e \u043c\u044b \u0443\u0436\u0430\u0441\u043d\u044b\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0441\u0442\u044b.<\/p>\n<p><!--more--><\/p>\n<p>\u0411\u044b\u043b\u043e \u0431\u044b \u043d\u0435\u043f\u043b\u043e\u0445\u043e \u0438\u043c\u0435\u0442\u044c \u0442\u0430\u043a\u0443\u044e \u043f\u0440\u0435\u043a\u0440\u0430\u0441\u043d\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e, \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u043c \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0431\u044b\u043b\u0430 \u0431\u044b \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f, \u00a0\u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u0430\u044f \u043d\u0430\u0434 \u043e\u043f\u0435\u0440\u0430\u043d\u0434\u0430\u043c\u0438 \u0438\u0437 \u0441\u0442\u044d\u043a\u0430.<\/p>\n<p>[js]<br \/>\nfunc performOperation (operation: &#8230;)<br \/>\n[\/js]<\/p>\n<p>\u0422\u043e \u0435\u0441\u0442\u044c \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u043c \u0434\u043e\u043b\u0436\u043d\u0430 \u0431\u044b\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044f. \u0410\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u044b \u0438\u043c\u0435\u044e\u0442 \u0438\u043c\u044f, \u0432 \u043d\u0430\u0448\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435 &#8212; \u044d\u0442\u043e <strong><span style=\"color: #0000ff;\">operation<\/span><\/strong>, \u0430 \u0442\u0438\u043f &#8212; \u0447\u0442\u043e-\u0442\u043e, \u0447\u0442\u043e \u043f\u043e\u043a\u0430 \u043c\u044b \u043d\u0435 \u0437\u043d\u0430\u0435\u043c, \u043d\u043e \u044d\u0442\u043e \u0442\u0430\u043a\u0430\u044f \u043c\u0430\u043b\u0435\u043d\u044c\u043a\u0430\u044f \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f \u0442\u0438\u043f\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u0438.<\/p>\n<p>\u041f\u0435\u0440\u0435\u043d\u0435\u0441\u0435\u043c \u043d\u0430\u0448 \u043a\u043e\u0434 \u0432 \u044d\u0442\u0443 \u0444\u0443\u043d\u043a\u0446\u0438\u044e<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.09.58-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-831 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.09.58-PM.png\" alt=\"Screen Shot 2015-02-02 at 5.09.58 PM\" width=\"1212\" height=\"240\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.09.58-PM.png 1212w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.09.58-PM-300x59.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.09.58-PM-1024x203.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.09.58-PM-500x99.png 500w\" sizes=\"auto, (max-width: 1212px) 100vw, 1212px\" \/><\/a><\/p>\n<p>\u0417\u0430\u043c\u0435\u0442\u0438\u043c, \u0447\u0442\u043e \u00a0\u0432\u0441\u0435 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0435, \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u043d\u044b\u0435 \u0432\u043d\u0443\u0442\u0440\u0438 \u043a\u043b\u0430\u0441\u0441\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c \u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u00a0\u00a0<strong><span style=\"color: #0000ff;\">performOperation<\/span><\/strong>, \u00a0\u043c\u044b \u0440\u0430\u0437\u0434\u0435\u043b\u044f\u0435\u043c \u0438\u0445 (share) \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u043c\u0438. \u042d\u0442\u043e <strong><span style=\"color: #0000ff;\">operandStack<\/span> <\/strong>\u0438 <strong><span style=\"color: #0000ff;\">displayValue<\/span><\/strong>. \u041f\u043e\u044d\u0442\u043e\u043c\u0443 \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u043d\u043e\u0441\u0435 \u00a0\u0432\u044b\u0437\u043e\u0432\u0430 \u044d\u0442\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0432 <strong><span style=\"color: #0000ff;\">switch<\/span><\/strong> \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440, \u043d\u0430\u043c \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0437\u0430\u0434\u0430\u0442\u044c \u0442\u043e\u043b\u044c\u043a\u043e \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044e<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.42.24-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-834 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.42.24-PM.png\" alt=\"Screen Shot 2015-02-02 at 5.42.24 PM\" width=\"1318\" height=\"582\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.42.24-PM.png 1318w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.42.24-PM-300x132.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.42.24-PM-1024x452.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.42.24-PM-500x221.png 500w\" sizes=\"auto, (max-width: 1318px) 100vw, 1318px\" \/><\/a><\/p>\n<p>\u0422\u0435\u043f\u0435\u0440\u044c \u043f\u043e\u043d\u044f\u0442\u043d\u043e, \u0447\u0442\u043e \u043c\u044b \u0434\u043e\u043b\u0436\u043d\u044b \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442 \u0432 \u0444\u0443\u043d\u043a\u0446\u0438\u0438<strong><span style=\"color: #0000ff;\"> performOperation<\/span> <\/strong>\u043a\u0430\u043a \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0441 \u0434\u0432\u0443\u043c\u044f \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u0430\u043c\u0438 \u0442\u0438\u043f\u0430 <strong><span style=\"color: #0000ff;\">Double<\/span><\/strong> \u043d\u0430 \u0432\u0445\u043e\u0434\u0435 \u0438 \u00a0\u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u044e\u0449\u0443\u044e \u0442\u043e\u0436\u0435 \u00a0<span style=\"color: #0000ff;\"><strong>Double<\/strong>.<\/span> \u041c\u043e\u0436\u043d\u043e \u043b\u0438 \u0432 Swift \u0437\u0430\u0434\u0430\u0442\u044c \u0442\u0438\u043f \u043a\u0430\u043a \u0444\u0443\u043d\u043a\u0446\u0438\u044e? \u0414\u0430, \u0442\u0438\u043f\u044b \u0432 Swift \u043c\u043e\u0433\u0443\u0442 \u0431\u044b\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u043c\u0438 \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u044b\u0435 \u0442\u0438\u043f\u044b. \u0422\u043e \u0435\u0441\u0442\u044c \u0432 \u043d\u0430\u0448\u0435\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u0442\u0438\u043f &#8212; \u044d\u0442\u043e \u0444\u0443\u043d\u043a\u0446\u0438\u044f. \u041a\u0430\u043a \u044f \u0434\u043e\u043b\u0436\u0435\u043d \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u00a0\u0442\u0438\u043f \u043a\u0430\u043a \u0444\u0443\u043d\u043a\u0446\u0438\u044e? \u041a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0431\u0435\u0437 \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u044f &#8212; \u0442\u043e\u043b\u044c\u043a\u043e \u0442\u0438\u043f\u044b: <strong><span style=\"color: #0000ff;\">(Double, Double) -&gt; Double<\/span><\/strong>. \u042d\u0442\u043e \u0438 \u0435\u0441\u0442\u044c \u0442\u0438\u043f \u0444\u0443\u043d\u043a\u0446\u0438\u0438.<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.39.30-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-833 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.39.30-PM.png\" alt=\"Screen Shot 2015-02-02 at 5.39.30 PM\" width=\"984\" height=\"190\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.39.30-PM.png 984w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.39.30-PM-300x58.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.39.30-PM-500x97.png 500w\" sizes=\"auto, (max-width: 984px) 100vw, 984px\" \/><\/a><\/p>\n<p>\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u043c \u0441\u043e\u0433\u043b\u0430\u0441\u043d\u043e \u044d\u0442\u043e\u043c\u0443 \u0442\u0438\u043f\u0443 \u0444\u0443\u043d\u043a\u0446\u0438\u044e <strong><span style=\"color: #0000ff;\">multiply<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.48.59-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-835 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.48.59-PM.png\" alt=\"Screen Shot 2015-02-02 at 5.48.59 PM\" width=\"1308\" height=\"768\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.48.59-PM.png 1308w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.48.59-PM-300x176.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.48.59-PM-1024x601.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-5.48.59-PM-500x294.png 500w\" sizes=\"auto, (max-width: 1308px) 100vw, 1308px\" \/><\/a><\/p>\n<p>\u041e\u0448\u0438\u0431\u043e\u043a \u043d\u0435\u0442. \u0417\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c. \u0412\u0432\u043e\u0434\u0438\u043c &#171;<strong>6<\/strong>&#187; <strong><span style=\"color: #0000ff;\">\u23ce<\/span><\/strong> &#171;<strong>5<\/strong>&#171;<strong>\u00a0<\/strong>&#171;<strong>4<\/strong>&#187; &#171;<strong>\u0445<\/strong>&#187; .<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-6.10.53-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-836 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-6.10.53-PM.png\" alt=\"Screen Shot 2015-02-02 at 6.10.53 PM\" width=\"1214\" height=\"782\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-6.10.53-PM.png 1214w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-6.10.53-PM-300x193.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-6.10.53-PM-1024x660.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-02-at-6.10.53-PM-466x300.png 466w\" sizes=\"auto, (max-width: 1214px) 100vw, 1214px\" \/><\/a>\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442.<\/p>\n<p>\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u0435\u0440\u0435\u0439\u0434\u0435\u043c \u043a \u0434\u0440\u0443\u0433\u0438\u043c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f\u043c. \u041c\u044b \u043c\u043e\u0433\u043b\u0438 \u0431\u044b \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0435\u0449\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 \u0442\u0438\u043f\u0430 <strong><span style=\"color: #0000ff;\">divide<\/span><\/strong>, <strong><span style=\"color: #0000ff;\">plus<\/span> <\/strong>\u00a0\u0438 \u0442.\u0434. \u0438 \u0441\u043a\u043e\u043f\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0438 \u0432\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u043a\u043e\u0434 \u0438\u0437 <strong><span style=\"color: #0000ff;\">mutiply<\/span><\/strong>. \u041d\u043e \u044d\u0442\u043e \u0442\u0430\u043a\u0436\u0435 \u0443\u0436\u0430\u0441\u043d\u043e, \u043a\u0430\u043a \u0438 \u0442\u043e, \u043e\u0442 \u0447\u0435\u0433\u043e \u043c\u044b \u0443\u0445\u043e\u0434\u0438\u043b\u0438 \u0440\u0430\u043d\u0435\u0435. \u00a0 \u041d\u043e \u0432 Swift \u043c\u043e\u0436\u043d\u043e \u0432\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0441\u0430\u043c\u0443 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043a\u0430\u043a \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442. \u0422\u043e \u0435\u0441\u0442\u044c \u0432\u043c\u0435\u0441\u0442\u043e <strong><span style=\"color: #0000ff;\">multiply<\/span><\/strong> \u00a0\u043c\u043e\u0436\u043d\u043e \u0432\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u043f\u0440\u043e\u0441\u0442\u043e \u043a\u043e\u0434 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0438 \u043d\u0435 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e. \u041d\u043e \u043f\u0440\u0438 \u0432\u0441\u0442\u0430\u0432\u043a\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u043d\u0430\u043c \u043d\u0443\u0436\u043d\u043e \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u0438\u0437\u043c\u0435\u043d\u0438\u0442\u044c \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441. \u041f\u043e\u043c\u0435\u0449\u0430\u0435\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0432 \u0444\u0438\u0433\u0443\u0440\u043d\u044b\u0435 \u0441\u043a\u043e\u0431\u043a\u0438, \u043f\u043e\u0441\u043b\u0435 \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0446\u0438\u0438 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0432\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u0441\u043b\u043e\u0432\u043e <strong><span style=\"color: #0000ff;\">in<\/span><\/strong> \u0434\u043b\u044f \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u0430 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f \u0438 \u0443\u0431\u0438\u0440\u0430\u0435\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u044e <strong><span style=\"color: #0000ff;\">multiply <\/span><\/strong><span style=\"color: #000000;\">\u0438\u0437 \u043d\u0430\u0448\u0435\u0433\u043e \u043a\u043e\u0434\u0430.<\/span><\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.31.24-AM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-845 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.31.24-AM.png\" alt=\"Screen Shot 2015-02-03 at 11.31.24 AM\" width=\"1080\" height=\"504\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.31.24-AM.png 1080w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.31.24-AM-300x140.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.31.24-AM-1024x478.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.31.24-AM-500x233.png 500w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><\/a><\/p>\n<p>\u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c, \u0432\u043c\u0435\u0441\u0442\u043e \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u0430 \u043c\u044b \u043c\u043e\u0436\u0435\u043c \u043f\u0440\u044f\u043c\u043e \u043d\u0430\u043f\u0438\u0441\u0430\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0432 \u0444\u0438\u0433\u0443\u0440\u043d\u044b\u0445 \u0441\u043a\u043e\u0431\u043a\u0430\u0445. \u042d\u0442\u043e \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f, \u043a\u0430\u043a \u0438 \u0432 \u0434\u0440\u0443\u0433\u0438\u0445 \u044f\u0437\u044b\u043a\u0430\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, <strong><span style=\"color: #000000;\">\u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u0435\u043c (closure)<\/span> <\/strong>\u0438 \u043e\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u0438\u0441\u0430\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u043a\u0430\u043a \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442. \u0412\u0441\u0435 \u043d\u043e\u0440\u043c\u0430\u043b\u044c\u043d\u043e, \u044d\u0442\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442.<\/p>\n<p>\u041d\u043e \u043c\u044b \u043c\u043e\u0436\u0435\u043c \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0435\u0449\u0435 \u043b\u0443\u0447\u0448\u0435. \u0412\u044b \u0437\u043d\u0430\u0435\u0442\u0435, \u0447\u0442\u043e<strong> Swift<\/strong> \u0437\u0430\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0441 \u0442\u0430\u043a\u0438\u043c \u043f\u043e\u043d\u044f\u0442\u0438\u0435\u043c, \u043a\u0430\u043a <strong>&#171;\u0432\u044b\u0432\u043e\u0434 \u0442\u0438\u043f\u0430&#187;<\/strong>, \u0442\u043e \u0435\u0441\u0442\u044c \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442 \u0442\u0438\u043f \u0438\u0437 \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u0430. \u0418 \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0437\u0434\u0435\u0441\u044c \u0442\u043e \u0436\u0435 \u0441\u0430\u043c\u043e\u0435. \u0415\u0441\u043b\u0438 \u0432\u044b \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u0442\u0435 \u043d\u0430 \u0444\u0443\u043d\u043a\u0446\u0438\u044e\u00a0<strong><span style=\"color: #0000ff;\">performOperation<\/span><\/strong>, \u0442\u043e \u043e\u043d\u0430 \u0437\u043d\u0430\u0435\u0442, \u0447\u0442\u043e \u0435\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u043c \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0431\u0435\u0440\u0435\u0442 \u0434\u0432\u0430 <strong><span style=\"color: #0000ff;\">Double<\/span><\/strong>s \u0438 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442 <strong><span style=\"color: #0000ff;\">Double<\/span><\/strong>. \u041f\u043e\u044d\u0442\u043e\u043c\u0443 \u0440\u0435\u0430\u043b\u044c\u043d\u043e \u043f\u0440\u0438 \u0432\u044b\u0437\u043e\u0432\u0435 \u0432\u0430\u043c \u043d\u0435 \u043d\u0443\u0436\u043d\u043e \u043e\u043f\u044f\u0442\u044c \u0438\u0445 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u0442\u044c. \u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0438\u0437\u0431\u0430\u0432\u0438\u0442\u044c\u0441\u044f \u043e\u0442 \u0434\u0435\u043a\u043b\u0430\u0440\u0430\u0446\u0438\u0438\u00a0\u0432\u0441\u0435\u0445 \u0442\u0438\u043f\u043e\u0432.<br \/>\n<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.59.07-AM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-846 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.59.07-AM.png\" alt=\"Screen Shot 2015-02-03 at 11.59.07 AM\" width=\"948\" height=\"290\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.59.07-AM.png 948w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.59.07-AM-300x92.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-11.59.07-AM-500x153.png 500w\" sizes=\"auto, (max-width: 948px) 100vw, 948px\" \/><\/a>\u0418 \u043d\u0438\u043a\u0430\u043a\u0438\u0445 \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u0439 \u0438\u043b\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0439 \u043e\u0431 \u043e\u0448\u0438\u0431\u043a\u0430\u0445.<\/p>\n<p>\u041d\u043e \u043c\u043e\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0435\u0449\u0435 \u043b\u0443\u0447\u0448\u0435. \u0424\u0443\u043d\u043a\u0446\u0438\u044f\u00a0<strong><span style=\"color: #0000ff;\">performOperation<\/span><\/strong>\u00a0\u0437\u043d\u0430\u0435\u0442, \u0447\u0442\u043e \u043e\u043d\u0430 \u0447\u0442\u043e-\u0442\u043e \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u043c\u043e\u0436\u043d\u043e \u0443\u0431\u0440\u0430\u0442\u044c \u043a\u043b\u044e\u0447\u0435\u0432\u043e\u0435 \u0441\u043b\u043e\u0432\u043e \u00a0<strong><span style=\"color: #0000ff;\">return<\/span><\/strong>, \u0442\u0430\u043a \u043a\u0430\u043a \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u0442\u0441\u044f \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435. \u0414\u0430\u043b\u0435\u0435 \u0435\u0449\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u0435\u0435: <strong>Swift<\/strong> \u043d\u0435 \u043f\u0440\u0438\u043d\u0443\u0436\u0434\u0430\u0435\u0442 \u0432\u0430\u0441 \u043d\u0430\u0437\u044b\u0432\u0430\u0442\u044c \u043d\u0430\u0448\u0438 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u044b, \u0435\u0441\u043b\u0438 \u0432\u044b \u0438\u0445 \u043d\u0435 \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0435, \u0442\u043e <strong>Swift<\/strong>\u00a0\u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0441\u0432\u043e\u0438 \u0438\u043c\u0435\u043d\u0430 : <strong>$0<\/strong>, <strong>$1<\/strong>, <strong>$2<\/strong> \u0438 \u0442.\u0434.<br \/>\n<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.13.57-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-847 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.13.57-PM.png\" alt=\"Screen Shot 2015-02-03 at 12.13.57 PM\" width=\"756\" height=\"262\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.13.57-PM.png 756w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.13.57-PM-300x104.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.13.57-PM-500x173.png 500w\" sizes=\"auto, (max-width: 756px) 100vw, 756px\" \/><\/a>\u041d\u043e \u0435\u0441\u0442\u044c \u0435\u0449\u0435 \u043e\u0434\u043d\u0430 \u0437\u0430\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0432 <strong>Swift<\/strong>. \u00a0\u0415\u0441\u043b\u0438 \u0443 \u0432\u0430\u0441 \u0435\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u044f, \u0438 \u043e\u043d\u0430 \u0438\u043c\u0435\u0435\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u0430, \u043a\u0430\u043a\u00a0<strong><span style=\"color: #0000ff;\">performOperation<\/span><\/strong>, \u0438 \u044d\u0442\u043e\u0442 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u043c \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432, \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u044b\u043d\u0435\u0441\u0442\u0438 \u044d\u0442\u0443 \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0437\u0430 \u043a\u0440\u0443\u0433\u043b\u044b\u0435 \u0441\u043a\u043e\u0431\u043a\u0438. \u0415\u0441\u043b\u0438 \u043f\u0435\u0440\u0435\u0434 \u044d\u0442\u0438\u043c \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u043c-\u0444\u0443\u043d\u043a\u0446\u0438\u0435\u0439 \u0431\u044b\u043b\u0438 \u0434\u0440\u0443\u0433\u0438\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u044b, \u0442\u043e \u043e\u043d\u0438 \u043e\u0441\u0442\u0430\u043d\u0443\u0442\u0441\u044f \u0432 \u0441\u043a\u043e\u0431\u043a\u0430\u0445, \u043d\u043e \u0435\u0441\u043b\u0438 \u043d\u0435 \u043e\u0441\u0442\u0430\u043b\u043e\u0441\u044c \u043d\u0438\u043a\u0430\u043a\u0438\u0445 \u0434\u0440\u0443\u0433\u0438\u0445 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432, \u0442\u043e \u043a\u0440\u0443\u0433\u043b\u044b\u0435 \u0441\u043a\u043e\u0431\u043a\u0438 \u043c\u043e\u0436\u043d\u043e \u0432\u043e\u043e\u0431\u0449\u0435 \u0443\u0431\u0440\u0430\u0442\u044c.<\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>\u041f\u0440\u0438\u043c\u0435\u0447\u0430\u043d\u0438\u0435.<\/strong><\/em><\/span> \u0422\u0430\u043a\u0430\u044f \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c <strong>Swift<\/strong> \u043d\u0430\u0437\u044b\u0432\u0430\u0435\u0442\u0441\u044f &#171;\u0445\u0432\u043e\u0441\u0442\u043e\u0432\u043e\u0435&#187; \u0437\u0430\u043c\u044b\u043a\u0430\u043d\u0438\u0435 (<strong>trailing<\/strong> <strong>closure<\/strong>). \u0412 \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u043c \u043f\u0440\u043e\u0444\u0435\u0441\u0441\u043e\u0440 \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0435\u044e \u043f\u043e\u0432\u0441\u0435\u043c\u0435\u0441\u0442\u043d\u043e.<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.24.38-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-848 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.24.38-PM.png\" alt=\"Screen Shot 2015-02-03 at 12.24.38 PM\" width=\"652\" height=\"308\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.24.38-PM.png 652w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.24.38-PM-300x142.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.24.38-PM-500x236.png 500w\" sizes=\"auto, (max-width: 652px) 100vw, 652px\" \/><\/a><\/p>\n<p>\u041c\u044b \u0441\u0434\u0435\u043b\u0430\u043b\u0438 \u0442\u0430\u043a\u043e\u0439 \u043a\u0440\u0430\u0442\u043a\u0438\u0439 \u043a\u043e\u0434 \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u0437\u0430\u043c\u0435\u0447\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044f\u043c <strong>Swift<\/strong>, \u043d\u043e \u0442\u043e \u0436\u0435 \u0441\u0430\u043c\u043e\u0435 \u043c\u043e\u0436\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044f\u043c\u0438. \u041d\u043e \u043d\u0443\u0436\u043d\u043e \u0431\u044b\u0442\u044c \u0432\u043d\u0438\u043c\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u043c\u0438 \u0441 \u043f\u043e\u0440\u044f\u0434\u043a\u043e\u043c \u043e\u043f\u0435\u0440\u0430\u043d\u0434\u043e\u0432, \u043f\u043e\u0442\u043e\u043c\u0443 \u0447\u0442\u043e \u043f\u0440\u0438 <strong>\u0434\u0435\u043b\u0435\u043d\u0438\u0438<\/strong> \u0442\u043e, \u043d\u0430 \u0447\u0442\u043e \u043c\u044b \u0434\u0435\u043b\u0438\u043c \u043c\u044b \u0434\u043e\u0441\u0442\u0430\u0435\u043c \u0438\u0437 \u0441\u0442\u044d\u043a\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u043c. \u0422\u043e \u0436\u0435 \u0441\u0430\u043c\u043e\u0435 \u043a\u0430\u0441\u0430\u0435\u0442\u0441\u044f <strong>\u0432\u044b\u0447\u0438\u0442\u0430\u043d\u0438\u044f<\/strong>.<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.36.00-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-849 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.36.00-PM.png\" alt=\"Screen Shot 2015-02-03 at 12.36.00 PM\" width=\"600\" height=\"214\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.36.00-PM.png 600w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.36.00-PM-300x107.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.36.00-PM-500x178.png 500w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a>\u0412\u044b \u0432\u0438\u0434\u0438\u0442\u0435, \u0443 \u043d\u0430\u0441 \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0441\u044f \u043e\u0447\u0435\u043d\u044c \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u044b\u0439 \u043a\u043e\u0434, \u043e\u0447\u0435\u043d\u044c \u0447\u0438\u0442\u0430\u0435\u043c\u044b\u0439 \u0438 \u043e\u0447\u0435\u043d\u044c \u043c\u043e\u0449\u043d\u044b\u0439, \u0442\u0430\u043a \u043a\u0430\u043a \u043c\u044b \u043c\u043e\u0436\u0435\u043c \u0435\u0449\u0435 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043e\u0434\u043d\u043e\u0439 \u0441\u0442\u0440\u043e\u0447\u043a\u0438.<\/p>\n<p>\u041f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c, \u043a\u0430\u043a \u044d\u0442\u043e \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442. \u0412\u0432\u043e\u0434\u0438\u043c\u00a0\u00a0&#171;<strong>6<\/strong>&#187; <strong><span style=\"color: #0000ff;\">\u23ce<\/span><\/strong>\u00a0&#171;<strong>5<\/strong>&#187; <strong><span style=\"color: #0000ff;\">\u00d7<\/span><\/strong>, \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u043c\u00a0<strong>30<\/strong>, \u043f\u0440\u0435\u043a\u0440\u0430\u0441\u043d\u043e. \u041a\u0430\u043a \u043d\u0430\u0441\u0447\u0435\u0442\u00a0\u00a0&#171;<strong>47&#8243;<\/strong>\u00a0<span style=\"color: #0000ff;\"><strong>+<\/strong><\/span>\u00a0&#171;<strong>77&#8243;<\/strong>, \u043f\u0440\u0435\u043a\u0440\u0430\u0441\u043d\u043e. &#171;<strong>2<\/strong>&#187;\u00a0<strong><span style=\"color: #0000ff;\">\u00a0\u00f7<\/span><\/strong>. \u041f\u043e\u043b\u0443\u0447\u0430\u0435\u043c\u00a0<strong>38.5<\/strong>.<br \/>\n<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.58.11-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-850 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.58.11-PM.png\" alt=\"Screen Shot 2015-02-03 at 12.58.11 PM\" width=\"1196\" height=\"754\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.58.11-PM.png 1196w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.58.11-PM-300x189.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.58.11-PM-1024x646.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-12.58.11-PM-476x300.png 476w\" sizes=\"auto, (max-width: 1196px) 100vw, 1196px\" \/><\/a> \u0412\u044b \u0432\u0438\u0434\u0438\u0442\u0435 \u0441\u0442\u044d\u043a, \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0439 \u044d\u0442\u0438\u043c \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f\u043c.<\/p>\n<p>\u041d\u043e \u044f \u0441\u043e\u0431\u0438\u0440\u0430\u044e\u0441\u044c \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0435\u0449\u0435 \u043e\u0434\u043d\u0443 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u044e, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0438\u0445. \u041f\u043e\u044d\u0442\u043e\u043c\u0443 \u044f \u0434\u043e\u0431\u0430\u0432\u043b\u044e \u0435\u0449\u0435 \u043f\u0440\u0430\u0432\u044b\u0439 \u0440\u044f\u0434 \u043a\u043d\u043e\u043f\u043e\u043a &#8212; \u043e\u043d\u0438 \u043f\u043e\u043d\u0430\u0434\u043e\u0431\u044f\u0442\u0441\u044f \u0434\u043b\u044f \u0434\u043e\u043c\u0430\u0448\u043d\u0435\u0439 \u0440\u0430\u0431\u043e\u0442\u044b, \u0430 \u044f \u0438\u0437\u043c\u0435\u043d\u044e \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0438\u0436\u043d\u044e\u044e \u043d\u0430 \u0434\u0440\u0443\u0433\u043e\u0439 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 &#8212; \u043a\u043e\u0440\u0435\u043d\u044c \u043a\u0432\u0430\u0434\u0440\u0430\u0442\u043d\u044b\u0439 <strong><span style=\"color: #0000ff;\">\u00a0\u221a<\/span><\/strong>.<\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.40.12-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-851 size-medium\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.40.12-PM-300x277.png\" alt=\"Screen Shot 2015-02-03 at 1.40.12 PM\" width=\"300\" height=\"277\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.40.12-PM-300x277.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.40.12-PM-325x300.png 325w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.40.12-PM.png 730w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>\u0422\u0435\u043f\u0435\u0440\u044c \u044f \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u044e\u0441\u044c \u043a \u043a\u043e\u0434\u0443 \u0438 \u0434\u043e\u0431\u0430\u0432\u043b\u044f\u044f \u0435\u0449\u0435 \u043e\u0434\u043d\u0443 \u043f\u043e\u0437\u0438\u0446\u0438\u044e \u0432 \u043d\u0430\u0448 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 <strong><span style=\"color: #0000ff;\">switch,<\/span><\/strong>\u00a0 \u044f \u0431\u0443\u0434\u0443 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0442\u043e\u0442 \u0436\u0435 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c, \u0447\u0442\u043e \u0438 \u043f\u0440\u0435\u0436\u0434\u0435.<br \/>\n<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.48.27-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-852 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.48.27-PM.png\" alt=\"Screen Shot 2015-02-03 at 1.48.27 PM\" width=\"804\" height=\"310\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.48.27-PM.png 804w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.48.27-PM-300x116.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-1.48.27-PM-500x193.png 500w\" sizes=\"auto, (max-width: 804px) 100vw, 804px\" \/><\/a><br \/>\n\u0418 \u043f\u043e\u043b\u0443\u0447\u0430\u044e \u043e\u0448\u0438\u0431\u043a\u0443, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u0433\u043e\u0432\u043e\u0440\u0438\u0442 \u043e \u0442\u043e\u043c, \u0447\u0442\u043e \u043c\u044b \u0432\u044b\u0437\u044b\u0432\u0430\u0435\u043c \u00a0<strong><span style=\"color: #0000ff;\">performOperation<\/span><\/strong> \u0441 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u0435\u0439 \u0438 \u043e\u043d\u0430 \u0431\u0435\u0440\u0435\u0442 \u0434\u0432\u0430 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u0430, \u0430 \u0443 \u043d\u0430\u0441 \u0432\u0441\u0435\u0433\u043e \u043e\u0434\u0438\u043d , <strong>$0<\/strong>. \u041e\u0448\u0438\u0431\u043a\u0430 \u0433\u043e\u0432\u043e\u0440\u0438\u0442 \u043e\u0431 \u044d\u0442\u043e\u043c \u043d\u0435\u0441\u043e\u0432\u043f\u0430\u0434\u0435\u043d\u0438\u0438. \u041c\u044b \u0441\u043c\u043e\u0436\u0435\u043c \u0435\u0435 \u0438\u0441\u043f\u0440\u0430\u0432\u0438\u0442\u044c.<br \/>\n\u0421\u043e\u0437\u0434\u0430\u0435\u043c \u0435\u0449\u0435 \u043e\u0434\u043d\u0443 \u0444\u0443\u043d\u043a\u0446\u0438\u044e\u00a0<strong><span style=\"color: #0000ff;\">performOperation<\/span><\/strong> \u0441 \u043e\u0434\u043d\u0438\u043c \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u043c. \u0418, \u0432\u0435\u0440\u0438\u0442\u0435 \u043c\u043d\u0435 \u0438\u043b\u0438 \u043d\u0435\u0442, \u043d\u043e \u043e\u0448\u0438\u0431\u043a\u0438 \u0438\u0441\u0447\u0435\u0437\u043d\u0443\u0442.<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.29.20-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-856 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.29.20-PM.png\" alt=\"Screen Shot 2015-02-03 at 2.29.20 PM\" width=\"1252\" height=\"662\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.29.20-PM.png 1252w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.29.20-PM-300x159.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.29.20-PM-1024x541.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.29.20-PM-500x264.png 500w\" sizes=\"auto, (max-width: 1252px) 100vw, 1252px\" \/><\/a> <strong>Swift<\/strong> \u00a0\u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u0435\u0442, \u043a\u0430\u043a\u0443\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u0432 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0442 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u0430 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432, \u0442\u0438\u043f\u0430 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u043e\u0432 \u0438 \u0442.\u0434.. \u0412 Swift \u043c\u043e\u0436\u043d\u043e \u0438\u043c\u0435\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 \u0441 \u043e\u0434\u0438\u043d\u0430\u043a\u043e\u0432\u044b\u043c\u0438 \u0438\u043c\u0435\u043d\u0430\u043c\u0438, \u043d\u043e \u0435\u0441\u043b\u0438 \u043e\u043d\u0438 \u0438\u043c\u0435\u044e\u0442 \u0440\u0430\u0437\u043d\u044b\u0435 \u0430\u0440\u0433\u0443\u043c\u0435\u043d\u0442\u044b. \u0422\u043e\u0433\u0434\u0430 Swift \u0432\u044b\u0431\u0438\u0440\u0430\u0435\u0442 \u043f\u043e\u0434\u0445\u043e\u0434\u044f\u0449\u0443\u044e, \u0435\u0441\u043b\u0438 \u0441\u043c\u043e\u0436\u0435\u0442. \u0415\u0441\u043b\u0438 \u043d\u0435 \u0441\u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0434\u043e\u0431\u0440\u0430\u0442\u044c \u043d\u0443\u0436\u043d\u0443\u044e, \u0442\u043e \u0431\u0443\u0434\u0435\u0442 \u0436\u0430\u043b\u043e\u0432\u0430\u0442\u044c\u0441\u044f.<\/p>\n<hr \/>\n<p><strong><span style=\"color: #ff0000;\">\u0417\u0430\u043c\u0435\u0447\u0430\u043d\u0438\u0435.<\/span> <\/strong>\u041b\u0435\u043a\u0442\u043e\u0440 \u0440\u0430\u0431\u043e\u0442\u0430\u043b \u0441 <strong>Swift 1.1<\/strong> \u0438<strong> iOS 8.2.<\/strong> \u0418 \u043e\u0448\u0438\u0431\u043a\u0438 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0438\u0441\u0447\u0435\u0437\u0430\u043b\u0438. \u041d\u043e \u0432 <strong>Swift 1.2<\/strong>\u00a0\u0438 <strong>Swift 2\u00a0<\/strong>\u044d\u0442\u043e\u0433\u043e \u043d\u0435 \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442. \u041d\u0430\u043e\u0431\u043e\u0440\u043e\u0442, \u043f\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0448\u0438\u0431\u043a\u0430<\/p>\n<pre> Method 'perform' with Objective<span class=\"pl-k\">-<\/span>C selector 'perform: ' conflicts with previous declaration with the same Objective<span class=\"pl-k\">-<\/span>C selector<\/pre>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.23.09-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-2140 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.23.09-PM.png\" alt=\"Screen Shot 2015-05-17 at 2.23.09 PM\" width=\"1302\" height=\"432\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.23.09-PM.png 1302w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.23.09-PM-300x100.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.23.09-PM-1024x340.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.23.09-PM-500x166.png 500w\" sizes=\"auto, (max-width: 1302px) 100vw, 1302px\" \/><\/a><br \/>\n\u041d\u0435 \u0432\u0434\u0430\u0432\u0430\u044f\u0441\u044c \u043d\u0430 \u044d\u0442\u043e\u043c \u044d\u0442\u0430\u043f\u0435 \u0432 \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e\u0441\u0442\u0438, \u0434\u043b\u044f \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0441\u0438\u0442\u0443\u0430\u0446\u0438\u0438 \u0432 <strong>Swift 1.2<\/strong>\u00a0\u0438 <strong>Swift 2\u00a0<\/strong>\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c \u043e\u0434\u043d\u0443 \u0438\u0437 \u044d\u0442\u0438\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 (\u0438\u043b\u0438 \u043e\u0431\u0435) <strong>private<\/strong> \u0438 \u043e\u0448\u0438\u0431\u043a\u0430 \u0438\u0441\u0447\u0435\u0437\u0430\u0435\u0442.<br \/>\n<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.46.04-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-2141 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.46.04-PM.png\" alt=\"Screen Shot 2015-05-17 at 2.46.04 PM\" width=\"1230\" height=\"394\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.46.04-PM.png 1230w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.46.04-PM-300x96.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.46.04-PM-1024x328.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-05-17-at-2.46.04-PM-500x160.png 500w\" sizes=\"auto, (max-width: 1230px) 100vw, 1230px\" \/><\/a><br \/>\n\u0410 \u0434\u043b\u044f<strong> Swift 2<\/strong>\u00a0(Xcode 7) \u0431\u043e\u043b\u0435\u0435 \u043b\u043e\u0433\u0438\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043d\u043e\u0432\u044b\u0439 \u0430\u0442\u0440\u0438\u0431\u0443\u0442 <strong><span style=\"color: #0000ff;\">@nonobjc<\/span><\/strong><\/p>\n<p><a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-10-14-at-8.22.33-AM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-3155 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-10-14-at-8.22.33-AM.png\" alt=\"Screen Shot 2015-10-14 at 8.22.33 AM\" width=\"1024\" height=\"628\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-10-14-at-8.22.33-AM.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-10-14-at-8.22.33-AM-300x184.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-10-14-at-8.22.33-AM-489x300.png 489w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>\u041e\u0431\u044a\u044f\u0441\u043d\u0435\u043d\u0438\u0435 \u0434\u0430\u0435\u0442\u0441\u044f \u0432 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u043c \u043f\u043e\u0441\u0442\u0435\u00a0<strong>:\u00a0<a href=\"https:\/\/bestkora.com\/IosDeveloper\/dopolnenie-k-lektsiya-2-osobennosti-koda-calculator-v-swift-1-2-ili-kak-ne-zastryat-na-etom-meste\/\">\u0414\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a \u041b\u0435\u043a\u0446\u0438\u044f 2 &#8212; \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u043a\u043e\u0434\u0430 Calculator \u0432 Swift 1.2 \u0438\u043b\u0438 \u043a\u0430\u043a \u043d\u0435 &#171;\u0437\u0430\u0441\u0442\u0440\u044f\u0442\u044c&#187; \u043d\u0430 \u044d\u0442\u043e\u043c \u043c\u0435\u0441\u0442\u0435.<\/a><\/strong><\/p>\n<hr \/>\n<p>\u0417\u0430\u043f\u0443\u0441\u043a\u0430\u0435\u043c \u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c. &#171;<b>81<\/b>&#187;\u00a0<strong><span style=\"color: #0000ff;\">\u00a0\u221a<\/span><\/strong>. \u041f\u043e\u043b\u0443\u0447\u0438\u043b\u0438 <strong>9<\/strong>. \u0412\u043e\u0434\u0438\u043c<strong><span style=\"color: #0000ff;\">\u00a0<span style=\"color: #000000;\">&#171;9&#187;<\/span> \u0445\u00a0<\/span><span style=\"color: #0000ff;\">\u00a0\u221a<\/span><\/strong>. \u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442.<br \/>\n<a href=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.40.05-PM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-857 size-full\" src=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.40.05-PM.png\" alt=\"Screen Shot 2015-02-03 at 2.40.05 PM\" width=\"1146\" height=\"852\" srcset=\"https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.40.05-PM.png 1146w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.40.05-PM-300x223.png 300w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.40.05-PM-1024x761.png 1024w, https:\/\/bestkora.com\/IosDeveloper\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-03-at-2.40.05-PM-404x300.png 404w\" sizes=\"auto, (max-width: 1146px) 100vw, 1146px\" \/><\/a>\u041f\u043e\u0441\u043b\u0435\u0434\u043d\u044f\u044f \u0432\u0435\u0449\u044c, \u043e \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u044f \u0445\u043e\u0447\u0443 \u0440\u0430\u0441\u0441\u043a\u0430\u0437\u0430\u0442\u044c, \u044d\u0442\u043e <strong>Autolayout<\/strong> (\u0420\u0430\u0437\u043c\u0435\u0442\u043a\u0430)<\/p>\n<p>&#8212;&#8212;&#8212;&#8212; 44 \u043c\u0438\u043d\u0443\u0442\u0430 \u043b\u0435\u043a\u0446\u0438\u0438 &#8212;-<\/p>\n<p><b>\u00a0\u041a\u043e\u0434 \u0434\u043b\u044f \u044d\u0442\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u043d\u0430\u00a0<a href=\"https:\/\/github.com\/BestKora\/Calculator-cs193p-2015\/tree\/Lecture2\/2\">GitHub.<\/a>\u00a0<\/b>(\u043d\u0443\u0436\u043d\u043e \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c <strong><span style=\"color: #0000ff;\">private<\/span><\/strong> \u0434\u043b\u044f \u043e\u0434\u043d\u043e\u0439 \u0438\u0437 \u0434\u0432\u0443\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 <strong><span style=\"color: #0000ff;\">performOperation (&#8230;)<\/span><\/strong>)<\/p>\n<p>\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0441\u043b\u0435\u0434\u0443\u0435\u0442&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>STANFORD UNIVERSITY: \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430\u00a0iOS 8\u00a0\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0441 Swift CS193P \u00a0\u041b\u0435\u043a\u0446\u0438\u044f 2: \u0411\u043e\u043b\u044c\u0448\u0435 Xcode \u0438 Swift \u041f\u0440\u043e\u0444\u0435\u0441\u0441\u043e\u0440 \u041f\u043e\u043b \u0425\u044d\u0433\u0430\u0440\u0442\u0438 (Paul Hegarty) \u041b\u0435\u043a\u0446\u0438\u044e \u043d\u0430 \u0430\u043d\u0433\u043b\u0438\u0439\u0441\u043a\u043e\u043c \u044f\u0437\u044b\u043a\u0435 \u0438 \u0441\u043b\u0430\u0439\u0434\u044b \u043c\u043e\u0434\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u043d\u0430\u00a0\u00a0iTunes \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u201c2. More Xcode and Swift, MVC\u201d. \u042d\u0442\u043e \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435: 2 &#8212; \u0430\u044f \u0447\u0430\u0441\u0442\u044c &hellip; <a href=\"https:\/\/bestkora.com\/IosDeveloper\/lektsiya-2-cs193p-winter-2015-bolshe-xcode-i-swift-mvc-chast-2\/\">\u0427\u0438\u0442\u0430\u0442\u044c \u0434\u0430\u043b\u0435\u0435 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,9,23,14],"tags":[31,25],"class_list":["post-823","post","type-post","status-publish","format-standard","hentry","category-ios-8","category-lecture","category-stanford-cs-193p-ios-8","category-swift","tag-swift","tag-lektsiya-ios-8"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0434\u043e\u043b\u0436\u0435\u043d\u0438\u0435 \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u0438\u043c\u0435\u0440\u0430 Calculator \u043d\u0430 Swift iOS 8. \u041f\u0430\u0442\u0442\u0435\u0440\u043d \u043e\u0431\u044a\u0435\u043a\u0442\u043d\u043e- \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f MVC\" \/>\n\t<meta name=\"robots\" content=\"max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n\t<meta name=\"author\" content=\"tatiana.kornilova@gmail.com\"\/>\n\t<meta name=\"keywords\" content=\"ios 8,swift,stanford cs 193p,xcode 6,\u0441\u0442\u044d\u043d\u0444\u043e\u0440\u0434\u0441\u043a\u0438\u0435 \u043b\u0435\u043a\u0446\u0438\u0438,\u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0434 ios,ios programming,\u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 ios 8 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439,stanford\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/bestkora.com\/IosDeveloper\/lektsiya-2-cs193p-winter-2015-bolshe-xcode-i-swift-mvc-chast-2\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.8\" \/>\n\t\t<meta property=\"og:locale\" content=\"ru_RU\" \/>\n\t\t<meta property=\"og:site_name\" content=\"\u041e\u0431\u0443\u0447\u0430\u044e\u0449\u0438\u0439 \u043a\u0443\u0440\u0441 \u043f\u043e \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0435 iOS+Swift \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439. | \u0420\u0443\u0441\u0441\u043a\u0438\u0439 \u043d\u0435\u0430\u0432\u0442\u043e\u0440\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043a\u043e\u043d\u0441\u043f\u0435\u043a\u0442 \u043b\u0435\u043a\u0446\u0438\u0439 \u0421\u0442\u044d\u043d\u0444\u043e\u0440\u0434\u0441\u043a\u043e\u0433\u043e \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442\u0430 &quot; \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 iOS \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439&quot; 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 , 2023,  2024,  2025  \u0438 2026 \u0433\u0433., \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u0435\u043c\u044b\u0439 \u0440\u0435\u0448\u0435\u043d\u0438\u044f\u043c\u0438 \u0437\u0430\u0434\u0430\u043d\u0438\u0439 \u0438 \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f\u043c\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u043c\u0438 \u0441 \u0430\u0434\u0430\u043f\u0442\u0430\u0446\u0438\u0435\u0439 \u043a\u0443\u0440\u0441\u043e\u0432 \u043a \u043d\u043e\u0432\u044b\u043c \u0432\u0435\u0440\u0441\u0438\u044f\u043c Swift, Objective-C \u0438 iOS.\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\u041b\u0435\u043a\u0446\u0438\u044f 2 CS193P Winter 2015 - \u0411\u043e\u043b\u044c\u0448\u0435 Xcode \u0438 Swift, MVC. 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