{"id":3891,"date":"2025-06-03T13:10:29","date_gmt":"2025-06-04T06:03:28","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3891"},"modified":"2025-06-04T13:10:29","modified_gmt":"2025-06-04T06:03:28","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%8c%af%e8%aa%a4%e8%99%95%e7%90%86","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%8c%af%e8%aa%a4%e8%99%95%e7%90%86\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3Swift\u932f\u8aa4\u8655\u7406\uff1a\u638c\u63e1throws\u8207try\u7684\u4f7f\u7528\u6280\u5de7"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Swift, \u932f\u8aa4\u8655\u7406, throws, try, Swift\u6559\u5b78, \u7a0b\u5f0f\u8a2d\u8a08\"><\/p>\n<h1>\u6df1\u5165\u4e86\u89e3Swift\u932f\u8aa4\u8655\u7406\uff1a\u638c\u63e1throws\u8207try\u7684\u4f7f\u7528\u6280\u5de7<\/h1>\n<p>Swift\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5c08\u70ba\u958b\u767c\u9ad8\u6548\u80fd\u61c9\u7528\u800c\u8a2d\u8a08\u3002\u5728\u65e5\u5e38\u958b\u767c\u4e2d\uff0c\u932f\u8aa4\u8655\u7406\u662f\u81f3\u95dc\u91cd\u8981\u7684\u4e00\u74b0\u3002Swift\u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u6709\u6548\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u61c9\u5c0d\u5404\u7a2e\u6f5b\u5728\u7684\u932f\u8aa4\u60c5\u6cc1\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528`throws`\u548c`try`\u4f86\u8655\u7406\u932f\u8aa4\uff0c\u5e6b\u52a9\u4f60\u63d0\u5347Swift\u7de8\u7a0b\u7684\u80fd\u529b\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662fthrows\uff1f<\/h2>\n<p>`throws`\u662f\u4e00\u7a2eSwift\u8a9e\u6cd5\uff0c\u7528\u65bc\u6a19\u8a18\u4e00\u500b\u51fd\u6578\u53ef\u80fd\u6703\u62cb\u51fa\u932f\u8aa4\u7684\u60c5\u6cc1\u3002\u9019\u4e0d\u50c5\u5e6b\u52a9\u958b\u767c\u8005\u4e86\u89e3\u51fd\u6578\u7684\u884c\u70ba\uff0c\u9084\u80fd\u63d0\u4f9b\u66f4\u597d\u7684\u932f\u8aa4\u985e\u578b\u6307\u5b9a\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528`throws`\u7684\u793a\u4f8b\u51fd\u6578\uff1a<\/p>\n<pre class=\"brush: python\">\nenum SomeError: Error {\n    case somethingFailed\n}\n\nfunc doSomething() throws -> String {\n    \/\/ \u505a\u4e00\u4e9b\u4e8b\u60c5\n    let somethingFailed = true \/\/ \u5047\u8a2d\u67d0\u500b\u64cd\u4f5c\u5931\u6557\n    if somethingFailed {\n        throw SomeError.somethingFailed\n    }\n    return \"\u5b8c\u6210\"\n}\n<\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b`doSomething`\u51fd\u6578\uff0c\u4e26\u4f7f\u7528`throws`\u6a19\u8a18\u5b83\u53ef\u80fd\u6703\u62cb\u51fa`SomeError.somethingFailed`\u932f\u8aa4\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662ftry\uff1f<\/h2>\n<p>`try`\u662f\u4e00\u7a2eSwift\u8a9e\u6cd5\uff0c\u7528\u65bc\u5617\u8a66\u57f7\u884c\u53ef\u80fd\u6703\u62cb\u51fa\u932f\u8aa4\u7684\u51fd\u6578\u3002\u5982\u679c\u51fd\u6578\u57f7\u884c\u6210\u529f\uff0c`try`\u6703\u8fd4\u56de\u8a72\u51fd\u6578\u7684\u7d50\u679c\uff1b\u5982\u679c\u57f7\u884c\u5931\u6557\uff0c\u5247\u6703\u62cb\u51fa\u932f\u8aa4\u4e26\u9032\u5165`catch`\u5340\u584a\u8655\u7406\u932f\u8aa4\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528`try`\uff1a<\/p>\n<pre class=\"brush: python\">\ndo {\n    let result = try doSomething()\n    print(result)\n} catch SomeError.somethingFailed {\n    print(\"\u64cd\u4f5c\u5931\u6557\uff1a\u67d0\u4e9b\u4e8b\u60c5\u6c92\u6709\u6309\u9810\u671f\u9032\u884c\u3002\")\n} catch {\n    print(\"\u767c\u751f\u672a\u77e5\u932f\u8aa4\uff1a\\(error)\")\n}\n<\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u4f7f\u7528`do-catch`\u7d50\u69cb\u4f86\u8655\u7406\u932f\u8aa4\u3002\u7576`doSomething()`\u51fd\u6578\u6210\u529f\u57f7\u884c\u6642\uff0c\u6211\u5011\u5c07\u7d50\u679c\u6253\u5370\u51fa\u4f86\uff1b\u5982\u679c\u767c\u751f\u932f\u8aa4\uff0c\u5247\u6839\u64da\u6355\u7372\u7684\u932f\u8aa4\u985e\u578b\u9032\u884c\u76f8\u61c9\u8655\u7406\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86Swift\u4e2d\u7684\u932f\u8aa4\u8655\u7406\u6a5f\u5236\uff0c\u7279\u5225\u662f`throws`\u548c`try`\u7684\u4f7f\u7528\u65b9\u6cd5\u3002`throws`\u7528\u65bc\u6a19\u8a18\u53ef\u80fd\u6703\u62cb\u51fa\u932f\u8aa4\u7684\u51fd\u6578\uff0c\u800c`try`\u5247\u7528\u65bc\u5b89\u5168\u5730\u57f7\u884c\u9019\u4e9b\u51fd\u6578\u4e26\u8655\u7406\u4efb\u4f55\u6f5b\u5728\u7684\u932f\u8aa4\u3002\u638c\u63e1\u9019\u4e9b\u6280\u5de7\u5c07\u5e6b\u52a9\u4f60\u5728Swift\u7de8\u7a0b\u4e2d\u66f4\u52a0\u81ea\u4fe1\uff0c\u5f9e\u5bb9\u9762\u5c0d\u5404\u7a2e\u6311\u6230\u3002<\/p>\n<p>\u5e0c\u671b\u672c\u6587\u5c0d\u4f60\u6709\u6240\u5e6b\u52a9\uff0c\u8b93\u4f60\u5728Swift\u7de8\u7a0b\u4e2d\u80fd\u5920\u66f4\u597d\u5730\u4f7f\u7528\u932f\u8aa4\u8655\u7406\u529f\u80fd\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\u8207\u61c9\u7528\u7a69\u5b9a\u6027\u3002<br \/>\n&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Swift\u4e2d\u7684\u932f\u8aa4\u8655\u7406\uff0c\u5305\u62ec\u5982\u4f55\u4f7f\u7528throws\u548ctry\u7b49\u3002\u6211\u5011\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528\u9019\u4e9b\u529f\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u66f4\u6709\u6548\u5730\u63a7\u5236\u548c\u8655\u7406\u932f\u8aa4\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-3891","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\/pcFK27-10L","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3891","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=3891"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3891\/revisions"}],"predecessor-version":[{"id":3892,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3891\/revisions\/3892"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3891"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3891"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3891"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}