{"id":5400,"date":"2023-01-05T12:36:34","date_gmt":"2023-01-05T04:36:34","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5400"},"modified":"2023-01-05T12:36:34","modified_gmt":"2023-01-05T04:36:34","slug":"%e4%ba%86%e8%a7%a3typescript%e4%b8%adsymbol%e7%9a%84%e5%8a%9f%e8%83%bd%e8%88%87%e6%87%89%e7%94%a8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%ba%86%e8%a7%a3typescript%e4%b8%adsymbol%e7%9a%84%e5%8a%9f%e8%83%bd%e8%88%87%e6%87%89%e7%94%a8\/","title":{"rendered":"\u4e86\u89e3TypeScript\u4e2dSymbol\u7684\u529f\u80fd\u8207\u61c9\u7528"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Symbol\"><\/p>\n<p>TypeScript \u4e2d\u7684 Symbol \u662f\u4e00\u7a2e\u65b0\u7684\u8cc7\u6599\u578b\u5225\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\u3002Symbol \u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u4e00\u500b\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002Symbol \u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u4e00\u500b\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002<\/p>\n<h2>TypeScript \u4e2d\u7684 Symbol<\/h2>\n<p>Symbol \u662f TypeScript \u4e2d\u7684\u4e00\u7a2e\u65b0\u7684\u8cc7\u6599\u578b\u5225\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\u3002Symbol \u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u4e00\u500b\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002<\/p>\n<p><!--more--><\/p>\n<p>Symbol \u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u4e00\u500b\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002Symbol \u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u4e00\u500b\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002<\/p>\n<h2>Symbol \u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n<p>\u8981\u4f7f\u7528 Symbol\uff0c\u53ef\u4ee5\u4f7f\u7528 TypeScript \u7684 <span style=\"color: #009900; font-weight: bold;\">Symbol()<\/span> \u51fd\u5f0f\u4f86\u5efa\u7acb\u4e00\u500b Symbol \u7269\u4ef6\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet mySymbol = Symbol();\n<\/pre>\n<p>\u63a5\u8457\uff0c\u53ef\u4ee5\u5c07 Symbol \u7269\u4ef6\u7528\u65bc\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet myObject = {\n    [mySymbol]: \"Hello World!\"\n};\n<\/pre>\n<p>\u9019\u6a23\u4e00\u4f86\uff0cmyObject \u7269\u4ef6\u5c31\u6709\u4e86\u4e00\u500b\u552f\u4e00\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>TypeScript \u4e2d\u7684 Symbol \u662f\u4e00\u7a2e\u65b0\u7684\u8cc7\u6599\u578b\u5225\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002Symbol \u53ef\u4ee5\u7528\u4f86\u5efa\u7acb\u4e00\u500b\u552f\u4e00\u7684\u8b58\u5225\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u800c\u4e0d\u6703\u8207\u5176\u4ed6\u5c6c\u6027\u540d\u7a31\u885d\u7a81\u3002\u4f7f\u7528 Symbol \u53ef\u4ee5\u8b93\u6211\u5011\u66f4\u6709\u6548\u7387\u5730\u7ba1\u7406\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\uff0c\u4e26\u4e14\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u7ba1\u7406\u7269\u4ef6\u7684\u5c6c\u6027\u540d\u7a31\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>TypeScript\u4e2d\u7684Symbol\u662f\u4e00\u7a2e\u65b0\u7684\u8cc7\u6599\u578b\u5225\uff0c\u53ef\u4ee5\u7528\u65bc\u5efa\u7acb\u552f\u4e00\u7684\u503c\uff0c\u4e26\u53ef\u4ee5\u7528\u65bc\u5b9a\u7fa9\u7269\u4ef6\u5c6c\u6027\uff0c\u4ee5\u53ca\u63d0\u4f9b\u66f4\u591a\u7684\u5b89\u5168\u6027\u548c\u79c1\u5bc6\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39Symbol\u7684\u529f\u80fd\u8207\u61c9\u7528\uff0c\u8b93\u4f60\u66f4\u52a0\u4e86\u89e3TypeScript\u4e2d\u7684Symbol\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":[187],"tags":[186],"class_list":["post-5400","post","type-post","status-publish","format-standard","hentry","category-typescript","tag-typescript"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1p6","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5400","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=5400"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5400\/revisions"}],"predecessor-version":[{"id":5401,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5400\/revisions\/5401"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}