{"id":4227,"date":"2025-06-01T11:48:47","date_gmt":"2025-06-05T04:25:46","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4227"},"modified":"2025-06-05T11:48:47","modified_gmt":"2025-06-05T04:25:46","slug":"%e4%ba%86%e8%a7%a3swift%e4%b8%ad%e7%9a%84bracedblockofstatements%e8%88%87unusedclosure-4","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/%e4%ba%86%e8%a7%a3swift%e4%b8%ad%e7%9a%84bracedblockofstatements%e8%88%87unusedclosure-4\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Swift \u7684 Braced Block of Statements \u8207 Unused Closure\uff1a2025 \u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Swift, Braced block of statements, Unused closure, Swift \u6559\u5b78, Swift \u8a9e\u6cd5, Swift \u5be6\u4f5c\u7bc4\u4f8b\"><\/p>\n<h1>\u6df1\u5165\u4e86\u89e3 Swift \u7684 Braced Block of Statements \u8207 Unused Closure<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u73fe\u4ee3\u5316\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5176\u8a9e\u6cd5\u7c21\u6f54\u4e14\u652f\u63f4\u591a\u7a2e\u529f\u80fd\uff0c\u9069\u5408\u5404\u985e\u578b\u7684\u958b\u767c\u8005\u4f7f\u7528\u3002\u5728 Swift \u958b\u767c\u4e2d\uff0c\u7406\u89e3 Braced Block of Statements \u548c Unused Closure \u7684\u6982\u5ff5\u5c0d\u65bc\u63d0\u5347\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u8207\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f Braced Block of Statements\uff1f<\/h2>\n<p>Braced Block of Statements \u662f Swift \u4e2d\u4e00\u7a2e\u5e38\u898b\u8a9e\u6cd5\uff0c\u5141\u8a31\u958b\u767c\u8005\u5728\u7a0b\u5f0f\u78bc\u4e2d\u64b0\u5beb\u591a\u884c\u7684\u7a0b\u5f0f\u78bc\uff0c\u800c\u7121\u9700\u5728\u6bcf\u884c\u5f8c\u52a0\u4e0a\u5206\u865f\u3002\u9019\u7a2e\u8a9e\u6cd5\u7684\u597d\u8655\u662f\u80fd\u5920\u4f7f\u7a0b\u5f0f\u78bc\u66f4\u6574\u6f54\uff0c\u6e1b\u5c11\u958b\u767c\u6642\u9593\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: swift\">\n{\n    \/\/ \u5728\u9019\u88e1\u64b0\u5beb\u4f60\u7684\u7a0b\u5f0f\u78bc\n}\n<\/pre>\n<h3>Braced Block \u7684\u61c9\u7528\u7bc4\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 Braced Block \u61c9\u7528\u7bc4\u4f8b\uff0c\u9019\u6bb5\u7a0b\u5f0f\u78bc\u6703\u5728\u63a7\u5236\u53f0\u8f38\u51fa\u5f9e 1 \u5230 5 \u7684\u6578\u5b57\uff1a<\/p>\n<pre class=\"brush: swift\">\nfor i in 1...5 {\n    print(i)\n}\n<\/pre>\n<p>\u6b64\u7bc4\u4f8b\u4e2d\uff0c`for` \u8ff4\u5708\u5167\u7684\u591a\u884c\u7a0b\u5f0f\u78bc\u88ab\u5305\u88f9\u5728\u5927\u62ec\u865f\u4e2d\uff0c\u9019\u6a23\u7684\u7d50\u69cb\u8b93\u7a0b\u5f0f\u78bc\u66f4\u6613\u65bc\u7dad\u8b77\u3002<\/p>\n<h2>Unused Closure \u662f\u4ec0\u9ebc\uff1f<\/h2>\n<p>Unused Closure \u662f\u4e00\u7a2e Swift \u8a9e\u6cd5\uff0c\u5141\u8a31\u958b\u767c\u8005\u64b0\u5beb\u533f\u540d\u51fd\u5f0f\u800c\u7121\u9700\u70ba\u5176\u547d\u540d\u3002\u9019\u5728\u8655\u7406\u7c21\u77ed\u7684\u51fd\u5f0f\u6216\u56de\u547c\u6642\u7279\u5225\u6709\u7528\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre class=\"brush: swift\">\n{ (parameters) -> ReturnType in\n    \/\/ \u5728\u9019\u88e1\u64b0\u5beb\u4f60\u7684\u7a0b\u5f0f\u78bc\n}\n<\/pre>\n<h3>Unused Closure \u7684\u61c9\u7528\u7bc4\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Unused Closure \u7684\u7bc4\u4f8b\uff0c\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u9589\u5305\u5c0d\u9663\u5217\u9032\u884c\u6392\u5e8f\uff1a<\/p>\n<pre class=\"brush: swift\">\nlet numbers = [5, 2, 3, 1, 4]\nlet sortedNumbers = numbers.sorted(by: { $0 < $1 })\nprint(sortedNumbers)  \/\/ \u8f38\u51fa: [1, 2, 3, 4, 5]\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u9589\u5305\u88ab\u7528\u4f86\u5b9a\u7fa9\u6392\u5e8f\u7684\u689d\u4ef6\uff0c\u8b93\u7a0b\u5f0f\u78bc\u66f4\u5177\u53ef\u8b80\u6027\u3002<\/p>\n<h2>Braced Block of Statements \u8207 Unused Closure \u7684\u5dee\u7570<\/h2>\n<p>Braced Block of Statements \u548c Unused Closure \u5404\u81ea\u6709\u5176\u7528\u9014\u3002Braced Block \u4e3b\u8981\u7528\u65bc\u5305\u88f9\u591a\u884c\u7a0b\u5f0f\u78bc\uff0c\u800c Unused Closure \u5247\u5c08\u6ce8\u65bc\u533f\u540d\u51fd\u5f0f\u7684\u64b0\u5beb\u3002\u4e86\u89e3\u9019\u5169\u8005\u7684\u5340\u5225\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u64b0\u5beb Swift \u7a0b\u5f0f\u78bc\u3002<\/p>\n<h2>\u932f\u8aa4\u6392\u9664\u8207\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728\u4f7f\u7528\u9019\u4e9b\u8a9e\u6cd5\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>1. **\u672a\u6b63\u78ba\u4f7f\u7528\u5927\u62ec\u865f**\uff1a\u78ba\u4fdd\u6bcf\u500b Braced Block \u90fd\u6709\u6b63\u78ba\u7684\u958b\u9589\u5927\u62ec\u865f\u3002<br \/>\n2. **Closure \u53c3\u6578\u672a\u8a2d\u7f6e**\uff1a\u5728\u4f7f\u7528 Unused Closure \u6642\uff0c\u78ba\u4fdd\u50b3\u5165\u7684\u53c3\u6578\u985e\u578b\u6b63\u78ba\u3002<\/p>\n<p>\u6700\u4f73\u5be6\u8e10\u5efa\u8b70\u4f7f\u7528\u6e05\u6670\u7684\u547d\u540d\u548c\u6ce8\u91cb\u4f86\u589e\u5f37\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\uff0c\u4e26\u9075\u5faa Swift \u7684\u8a9e\u6cd5\u898f\u7bc4\u3002<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>Swift \u4e2d\u7684 Braced Block of Statements \u548c Unused Closure \u662f\u5169\u7a2e\u5f37\u5927\u7684\u8a9e\u6cd5\u5de5\u5177\uff0c\u5404\u81ea\u64c1\u6709\u4e0d\u540c\u7684\u61c9\u7528\u5834\u666f\u3002\u638c\u63e1\u9019\u4e9b\u8a9e\u6cd5\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u958b\u767c\u6548\u7387\u53ca\u7a0b\u5f0f\u78bc\u8cea\u91cf\u3002<\/p>\n<h2>Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>1. Braced Block \u53ea\u80fd\u7528\u65bc\u8ff4\u5708\u4e2d\u55ce\uff1f<\/h3>\n<p>\u4e0d\uff0cBraced Block \u53ef\u4ee5\u7528\u65bc\u4efb\u4f55\u9700\u8981\u591a\u884c\u7a0b\u5f0f\u78bc\u7684\u4e0a\u4e0b\u6587\u4e2d\uff0c\u4f8b\u5982\u51fd\u5f0f\u5b9a\u7fa9\u3001\u689d\u4ef6\u8a9e\u53e5\u7b49\u3002<\/p>\n<h3>2. Unused Closure \u53ef\u4ee5\u7528\u65bc\u54ea\u4e9b\u60c5\u5883\uff1f<\/h3>\n<p>Unused Closure \u5e38\u7528\u65bc\u9700\u8981\u50b3\u905e\u51fd\u5f0f\u4f5c\u70ba\u53c3\u6578\u7684\u60c5\u5883\uff0c\u4f8b\u5982\u9663\u5217\u64cd\u4f5c\u3001\u7570\u6b65\u8655\u7406\u7b49\u3002<\/p>\n<h3>3. \u5982\u4f55\u78ba\u4fdd\u6211\u7684 Swift \u7a0b\u5f0f\u78bc\u6700\u4f73\u5316\uff1f<\/h3>\n<p>\u9075\u5faa Swift \u7684\u8a9e\u6cd5\u898f\u7bc4\uff0c\u4f7f\u7528\u6e05\u6670\u7684\u547d\u540d\u3001\u9069\u7576\u7684\u8a3b\u89e3\u53ca\u6e2c\u8a66\u7a0b\u5f0f\u78bc\u4ee5\u78ba\u4fdd\u5176\u529f\u80fd\u6b63\u78ba\u3002<br \/>\n---<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39Swift\u4e2dBracedBlockofStatements\u8207UnusedClosure\u7684\u529f\u80fd\uff0c\u4e26\u8a73\u7d30\u89e3\u91cb\u5b83\u5011\u7684\u7528\u9014\uff0c\u8b93\u8b80\u8005\u80fd\u5920\u66f4\u52a0\u4e86\u89e3Swift\u4e2d\u7684\u8a9e\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-4227","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\/pcFK27-16b","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4227","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=4227"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4227\/revisions"}],"predecessor-version":[{"id":4228,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4227\/revisions\/4228"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}