{"id":6648,"date":"2025-05-30T12:39:40","date_gmt":"2025-06-05T04:42:39","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=6648"},"modified":"2025-06-05T12:39:40","modified_gmt":"2025-06-05T04:42:39","slug":"https-badgameshow-com-steven-2","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/https-badgameshow-com-steven-2\/","title":{"rendered":"2025 \u6700\u65b0 Swift \u5b57\u4e32\u622a\u53d6\u8207\u5206\u5272\u6280\u5de7 \ud83d\udd2a \u5b8c\u6574\u6559\u5b78"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<meta name=\"keywords\" content=\"swift, Swift \u5b57\u4e32\u622a\u53d6, \u5b57\u4e32\u5206\u5272\u6280\u5de7, Swift \u7a0b\u5f0f\u6559\u5b78\"><\/p>\n<h2>\u4ec0\u9ebc\u662f Swift \u5b57\u4e32\u622a\u53d6\uff1f<\/h2>\n<p>Swift \u662f\u4e00\u7a2e\u975e\u5e38\u6d41\u884c\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5feb\u901f\u958b\u767c\u51fa\u9ad8\u54c1\u8cea\u7684 iOS\u3001macOS\u3001watchOS \u548c tvOS \u61c9\u7528\u7a0b\u5f0f\u3002\u5728 Swift \u4e2d\uff0c\u5b57\u4e32\u622a\u53d6\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u6280\u8853\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u5c0d\u5b57\u4e32\u9032\u884c\u5206\u5272\uff0c\u4ee5\u4fbf\u9032\u884c\u66f4\u8a73\u7d30\u7684\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u4ecb\u7d39 Swift \u4e2d\u7684\u5b57\u4e32\u622a\u53d6\u6280\u5de7\uff0c\u8b93\u4f60\u53ef\u4ee5\u66f4\u8f15\u9b06\u5730\u64cd\u4f5c\u5b57\u4e32\u3002<\/p>\n<h2>Swift \u5b57\u4e32\u622a\u53d6\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<p>\u5728 Swift \u4e2d\uff0c\u5b57\u4e32\u622a\u53d6\u53ef\u4ee5\u901a\u904e\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4e09\u7a2e\u5e38\u7528\u7684\u5b57\u4e32\u622a\u53d6\u65b9\u6cd5\uff1a<\/p>\n<h3>1. \u4f7f\u7528 String.suffix(from:)<\/h3>\n<p>\u9019\u500b\u65b9\u6cd5\u53ef\u4ee5\u5f9e\u6307\u5b9a\u7684\u4f4d\u7f6e\u958b\u59cb\u622a\u53d6\u5b57\u4e32\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let str = \"Hello World!\"\nlet substr = str.suffix(from: str.index(str.startIndex, offsetBy: 6))\nprint(substr) \/\/ prints \"World!\"\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u5f9e\u5b57\u4e32 &#8220;Hello World!&#8221; \u7684\u7b2c 6 \u500b\u5b57\u5143\u958b\u59cb\u622a\u53d6\uff0c\u4e26\u8f38\u51fa &#8220;World!&#8221;\u3002<\/p>\n<h3>2. \u4f7f\u7528 String.subString(with:)<\/h3>\n<p>\u9019\u500b\u65b9\u6cd5\u53ef\u4ee5\u6307\u5b9a\u4e00\u500b\u7bc4\u570d\u4f86\u622a\u53d6\u5b57\u4e32\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let str = \"Hello World!\"\nlet range = str.index(str.startIndex, offsetBy: 6)..<str.endIndex\nlet substr = str[range]\nprint(substr) \/\/ prints \"World!\"\n<\/code><\/pre>\n<p>\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5f9e \"Hello World!\" \u7684\u7b2c 6 \u500b\u5b57\u5143\u958b\u59cb\u622a\u53d6\uff0c\u4e26\u8f38\u51fa \"World!\"\u3002<\/p>\n<h3>3. \u4f7f\u7528 String.prefix(upTo:)<\/h3>\n<p>\u9019\u500b\u65b9\u6cd5\u53ef\u4ee5\u5f9e\u5b57\u4e32\u7684\u958b\u982d\u958b\u59cb\u622a\u53d6\uff0c\u76f4\u5230\u6307\u5b9a\u7684\u4f4d\u7f6e\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-swift line-numbers\">let str = \"Hello World!\"\nlet substr = str.prefix(upTo: str.index(str.startIndex, offsetBy: 6))\nprint(substr) \/\/ prints \"Hello \"\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u7a0b\u5f0f\u78bc\u5f9e \"Hello World!\" \u7684\u958b\u982d\u958b\u59cb\u622a\u53d6\uff0c\u76f4\u5230\u7b2c 6 \u500b\u5b57\u5143\u70ba\u6b62\uff0c\u4e26\u8f38\u51fa \"Hello \"\u3002<\/p>\n<h2>\u932f\u8aa4\u6392\u9664<\/h2>\n<p>\u5728\u9032\u884c\u5b57\u4e32\u622a\u53d6\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u932f\u8aa4\uff1a<\/p>\n<ul>\n<li><strong>Index out of range:<\/strong> \u78ba\u4fdd\u4f60\u622a\u53d6\u7684\u7bc4\u570d\u5728\u5b57\u4e32\u7684\u9577\u5ea6\u4e4b\u5167\u3002<\/li>\n<li><strong>Invalid range:<\/strong> \u6307\u5b9a\u7684\u7bc4\u570d\u5fc5\u9808\u662f\u6709\u6548\u7684\uff0c\u8acb\u6aa2\u67e5\u7bc4\u570d\u7684\u8d77\u59cb\u548c\u7d50\u675f\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u5b57\u4e32\u622a\u53d6\u6280\u5de7\u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u7c21\u55ae\u7684\u5b57\u4e32\u8655\u7406\uff0c\u9084\u53ef\u4ee5\u61c9\u7528\u65bc\u89e3\u6790\u8cc7\u6599\u3001\u751f\u6210\u5831\u8868\u3001\u904e\u6ffe\u7528\u6236\u8f38\u5165\u7b49\u5404\u7a2e\u5834\u666f\u3002\u900f\u904e\u638c\u63e1\u9019\u4e9b\u6280\u5de7\uff0c\u4f60\u53ef\u4ee5\u5728 Swift \u958b\u767c\u4e2d\u63d0\u5347\u6548\u7387\u3002<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cSwift \u4e2d\u7684\u5b57\u4e32\u622a\u53d6\u65b9\u6cd5\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u5c0d\u5b57\u4e32\u9032\u884c\u64cd\u4f5c\u3002\u900f\u904e\u4f7f\u7528 <strong>String.suffix(from:)<\/strong>\u3001<strong>String.subString(with:)<\/strong> \u548c <strong>String.prefix(upTo:)<\/strong>\uff0c\u4f60\u53ef\u4ee5\u9748\u6d3b\u5730\u8655\u7406\u5b57\u4e32\uff0c\u6eff\u8db3\u5404\u7a2e\u9700\u6c42\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u5b57\u4e32\u622a\u53d6-\ud83d\udd2a-\u5c08\u696d\u5b57\u4e32\u5206\u5272\u6cd5_1675392753.437803.webp\" alt=\"Swift \u5b57\u4e32\u622a\u53d6 \ud83d\udd2a \u5c08\u696d\u5b57\u4e32\u5206\u5272\u6cd5\" title=\"Swift \u5b57\u4e32\u622a\u53d6\u3001\u5c08\u696d\u5b57\u4e32\u5206\u5272\u3001\u5b57\u4e32\u622a\u53d6\u51fd\u6578\u3001\u5b57\u4e32\u5206\u5272\u6280\u5de7\" width=\"1200\" height=\"628\"\/><\/p>\n<h2>Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>Q1: Swift \u5b57\u4e32\u622a\u53d6\u6709\u54ea\u4e9b\u5e38\u898b\u7528\u9014\uff1f<\/h3>\n<p>A1: \u5e38\u898b\u7528\u9014\u5305\u62ec\u8cc7\u6599\u89e3\u6790\u3001\u5831\u8868\u751f\u6210\u53ca\u7528\u6236\u8f38\u5165\u904e\u6ffe\u7b49\u3002<\/p>\n<h3>Q2: \u5982\u4f55\u8655\u7406\u622a\u53d6\u7bc4\u570d\u932f\u8aa4\uff1f<\/h3>\n<p>A2: \u78ba\u4fdd\u7bc4\u570d\u7684\u8d77\u59cb\u548c\u7d50\u675f\u4f4d\u7f6e\u5728\u5b57\u4e32\u7684\u6709\u6548\u7bc4\u570d\u5167\uff0c\u4e26\u4f7f\u7528\u5b89\u5168\u7684\u7bc4\u570d\u6aa2\u67e5\u3002<\/p>\n<h3>Q3: Swift \u6709\u54ea\u4e9b\u5176\u4ed6\u5b57\u4e32\u8655\u7406\u65b9\u6cd5\uff1f<\/h3>\n<p>A3: \u9664\u4e86\u5b57\u4e32\u622a\u53d6\uff0cSwift \u9084\u63d0\u4f9b\u4e86\u5b57\u4e32\u62fc\u63a5\u3001\u66ff\u63db\u548c\u67e5\u8a62\u7b49\u591a\u7a2e\u5b57\u4e32\u8655\u7406\u65b9\u6cd5\u3002<\/p>\n<p>```<br \/>\n---<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2Swift\u5b57\u4e32\u622a\u53d6\ud83d\udd2a\u5c08\u696d\u5b57\u4e32\u5206\u5272\u6cd5\uff0c\u4e86\u89e3Swift\u4e2d\u7684\u5b57\u4e32\u622a\u53d6\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Swift\u4e2d\u7684\u5b57\u4e32\u622a\u53d6\u51fd\u6578\uff0c\u638c\u63e1\u5b57\u4e32\u5206\u5272\u7684\u5c08\u696d\u6280\u5de7\u3002<\/p>\n","protected":false},"author":1,"featured_media":6647,"comment_status":"open","ping_status":"closed","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-6648","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2023\/02\/Swift-\u5b57\u4e32\u622a\u53d6-\ud83d\udd2a-\u5c08\u696d\u5b57\u4e32\u5206\u5272\u6cd5_1675392753.437803.webp","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1Je","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6648","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=6648"}],"version-history":[{"count":0,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/6648\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/6647"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=6648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=6648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=6648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}