{"id":3877,"date":"2025-05-29T10:47:59","date_gmt":"2025-06-05T03:42:58","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3877"},"modified":"2025-06-05T10:47:59","modified_gmt":"2025-06-05T03:42:58","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8swift%e4%b8%ad%e7%9a%84%e9%a1%9e%ef%bc%9a%e5%ae%9a%e7%be%a9%e3%80%81%e5%b1%ac%e6%80%a7%e3%80%81%e6%96%b9%e6%b3%95%e3%80%81%e6%a7%8b%e9%80%a0","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8swift%e4%b8%ad%e7%9a%84%e9%a1%9e%ef%bc%9a%e5%ae%9a%e7%be%a9%e3%80%81%e5%b1%ac%e6%80%a7%e3%80%81%e6%96%b9%e6%b3%95%e3%80%81%e6%a7%8b%e9%80%a0\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Swift \u985e\u5225\uff1a\u5b9a\u7fa9\u3001\u5c6c\u6027\u3001\u65b9\u6cd5\u8207\u69cb\u9020\u51fd\u6578\u7684 2025 \u6700\u65b0\u5be6\u8e10"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Swift, \u985e, \u5c6c\u6027, \u65b9\u6cd5, \u69cb\u9020\u51fd\u6578, Swift 2025, Swift \u6559\u5b78\"><\/p>\n<h1>\u6df1\u5165\u4e86\u89e3 Swift \u985e\u5225<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u73fe\u4ee3\u5316\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u5f37\u5927\u7684\u65b9\u5f0f\u4f86\u69cb\u5efa\u548c\u7ba1\u7406\u985e\u5225\u3002\u5728\u9019\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e Swift \u985e\u5225\u7684\u5404\u500b\u65b9\u9762\uff0c\u5305\u62ec\u5982\u4f55\u5b9a\u7fa9\u985e\u5225\u3001\u4f7f\u7528\u985e\u5225\u7684\u5c6c\u6027\u3001\u65b9\u6cd5\u53ca\u69cb\u9020\u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u5be6\u4f5c\u7bc4\u4f8b\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<h2>\u5b9a\u7fa9\u985e\u5225<\/h2>\n<p>\u5728 Swift \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>class<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u4e00\u500b\u985e\u5225\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: swift\">\nclass MyClass {\n    \/\/ \u985e\u5225\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\n}\n<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba <code>MyClass<\/code> \u7684\u985e\u5225\u3002\u985e\u5225\u53ef\u4ee5\u5305\u542b\u591a\u7a2e\u5c6c\u6027\u548c\u65b9\u6cd5\uff0c\u63a5\u4e0b\u4f86\u6211\u5011\u5c07\u9032\u4e00\u6b65\u63a2\u8a0e\u9019\u4e9b\u5167\u5bb9\u3002<\/p>\n<h2>\u4f7f\u7528\u985e\u5225\u7684\u5c6c\u6027<\/h2>\n<p>\u5728 Swift \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>var<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u985e\u5225\u7684\u5c6c\u6027\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9a\u7fa9\u5c6c\u6027\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\nclass MyClass {\n    var myProperty: Int = 0\n}\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c<code>myProperty<\/code> \u662f\u4e00\u500b\u6574\u6578\u578b\u5225\u7684\u5c6c\u6027\uff0c\u5176\u521d\u59cb\u503c\u70ba 0\u3002\u5c6c\u6027\u53ef\u4ee5\u662f\u8a08\u7b97\u578b\u6216\u5132\u5b58\u578b\uff0c\u4ee5\u4e0b\u662f\u8a08\u7b97\u578b\u5c6c\u6027\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\nclass MyClass {\n    var myProperty: Int = 0\n    var doubleValue: Int {\n        return myProperty * 2\n    }\n}\n<\/pre>\n<h2>\u4f7f\u7528\u985e\u5225\u7684\u65b9\u6cd5<\/h2>\n<p>\u5728 Swift \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>func<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u985e\u5225\u7684\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u5b9a\u7fa9\u65b9\u6cd5\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\nclass MyClass {\n    func myMethod() {\n        print(\"Hello from myMethod!\")\n    }\n}\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba <code>myMethod<\/code> \u7684\u65b9\u6cd5\uff0c\u5b83\u6703\u8f38\u51fa\u4e00\u6bb5\u6587\u5b57\u3002\u4f60\u53ef\u4ee5\u900f\u904e\u985e\u5225\u7684\u5be6\u4f8b\u4f86\u547c\u53eb\u9019\u500b\u65b9\u6cd5\uff1a<\/p>\n<pre class=\"brush: swift\">\nlet myClassInstance = MyClass()\nmyClassInstance.myMethod()  \/\/ \u8f38\u51fa: Hello from myMethod!\n<\/pre>\n<h2>\u4f7f\u7528\u985e\u5225\u7684\u69cb\u9020\u51fd\u6578<\/h2>\n<p>\u5728 Swift \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>init<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u985e\u5225\u7684\u69cb\u9020\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u69cb\u9020\u51fd\u6578\u7684\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\nclass MyClass {\n    var myProperty: Int\n\n    init(property: Int) {\n        self.myProperty = property\n    }\n}\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u69cb\u9020\u51fd\u6578\uff0c\u7576\u6211\u5011\u5275\u5efa <code>MyClass<\/code> \u7684\u5be6\u4f8b\u6642\uff0c\u53ef\u4ee5\u50b3\u905e\u4e00\u500b\u6574\u6578\u503c\u4f5c\u70ba\u5c6c\u6027\u7684\u521d\u59cb\u503c\uff1a<\/p>\n<pre class=\"brush: swift\">\nlet myClassInstance = MyClass(property: 10)\nprint(myClassInstance.myProperty)  \/\/ \u8f38\u51fa: 10\n<\/pre>\n<h2>\u932f\u8aa4\u6392\u9664\u8207\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u5728\u4f7f\u7528 Swift \u985e\u5225\u6642\uff0c\u5e38\u898b\u7684\u932f\u8aa4\u5305\u62ec\uff1a<br \/>\n&#8211; **\u672a\u6b63\u78ba\u521d\u59cb\u5316\u5c6c\u6027**\uff1a\u78ba\u4fdd\u5728\u69cb\u9020\u51fd\u6578\u4e2d\u521d\u59cb\u5316\u6240\u6709\u5c6c\u6027\u3002<br \/>\n&#8211; **\u932f\u8aa4\u7684\u65b9\u6cd5\u547c\u53eb**\uff1a\u78ba\u8a8d\u65b9\u6cd5\u540d\u7a31\u8207\u53c3\u6578\u662f\u5426\u6b63\u78ba\u3002<\/p>\n<p>\u5ef6\u4f38\u61c9\u7528\u65b9\u9762\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u985e\u5225\u7684\u7e7c\u627f\u4f86\u5275\u5efa\u66f4\u8907\u96dc\u7684\u7d50\u69cb\u3002\u4f8b\u5982\uff0c\u5b50\u985e\u5225\u53ef\u4ee5\u7e7c\u627f\u7236\u985e\u5225\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\uff0c\u4e26\u6839\u64da\u9700\u8981\u9032\u884c\u64f4\u5c55\u6216\u4fee\u6539\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u6df1\u5165\u63a2\u8a0e\u4e86\u5982\u4f55\u4f7f\u7528 Swift \u985e\u5225\uff0c\u5305\u62ec\u985e\u5225\u7684\u5b9a\u7fa9\u3001\u5c6c\u6027\u3001\u65b9\u6cd5\u548c\u69cb\u9020\u51fd\u6578\u7b49\u5167\u5bb9\u3002\u900f\u904e\u9019\u4e9b\u77e5\u8b58\uff0c\u4f60\u5c07\u80fd\u5920\u66f4\u597d\u5730\u4f7f\u7528 Swift \u4f86\u69cb\u5efa\u548c\u7ba1\u7406\u61c9\u7528\u7a0b\u5f0f\u7684\u7d50\u69cb\u3002<\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<p><strong>Q: Swift \u985e\u5225\u8207\u7d50\u69cb\u6709\u4f55\u4e0d\u540c\uff1f<\/strong><br \/>A: \u985e\u5225\u662f\u5f15\u7528\u985e\u578b\uff0c\u800c\u7d50\u69cb\u662f\u503c\u985e\u578b\uff0c\u9019\u610f\u5473\u8457\u985e\u5225\u7684\u5be6\u4f8b\u6703\u5728\u591a\u500b\u8b8a\u6578\u4e4b\u9593\u5171\u4eab\uff0c\u800c\u7d50\u69cb\u7684\u5be6\u4f8b\u5247\u6703\u8907\u88fd\u3002<\/p>\n<p><strong>Q: \u5982\u4f55\u5728 Swift \u985e\u5225\u4e2d\u4f7f\u7528\u7e7c\u627f\uff1f<\/strong><br \/>A: \u900f\u904e\u5728\u5b50\u985e\u5225\u7684\u5b9a\u7fa9\u4e2d\u4f7f\u7528\u5192\u865f\uff08:\uff09\u4f86\u6307\u5b9a\u7236\u985e\u5225\uff0c\u4f8b\u5982 <code>class SubClass: ParentClass {}<\/code>\u3002<\/p>\n<p><strong>Q: Swift \u4e2d\u7684\u53ef\u9078\u5c6c\u6027\u662f\u4ec0\u9ebc\uff1f<\/strong><br \/>A: \u53ef\u9078\u5c6c\u6027\u662f\u53ef\u4ee5\u70ba <code>nil<\/code> \u7684\u5c6c\u6027\uff0c\u901a\u904e\u5728\u5c6c\u6027\u985e\u578b\u5f8c\u52a0\u4e0a <code>?<\/code> \u4f86\u5b9a\u7fa9\uff0c\u4f8b\u5982 <code>var optionalProperty: Int?<\/code>\u3002<\/p>\n<p>&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Swift\u4e2d\u7684\u985e\uff0c\u5305\u62ec\u5b9a\u7fa9\u985e\u3001\u4f7f\u7528\u985e\u7684\u5c6c\u6027\u3001\u4f7f\u7528\u985e\u7684\u65b9\u6cd5\u3001\u4f7f\u7528\u985e\u7684\u69cb\u9020\u51fd\u6578\u7b49\uff0c\u8b93\u8b80\u8005\u80fd\u5920\u66f4\u52a0\u77ad\u89e3Swift\u4e2d\u7684\u985e\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[174,5],"tags":[173,9],"class_list":["post-3877","post","type-post","status-publish","format-standard","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-10x","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3877"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3877\/revisions"}],"predecessor-version":[{"id":3878,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3877\/revisions\/3878"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}