{"id":4906,"date":"2023-01-05T11:16:50","date_gmt":"2023-01-05T03:16:50","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4906"},"modified":"2023-01-05T11:16:50","modified_gmt":"2023-01-05T03:16:50","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%b4%a2typescript%e7%b1%bb%e5%9e%8b%e6%96%ad%e8%a8%80%e4%b8%8e%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2%e7%9a%84%e5%b7%ae%e7%95%b0","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e6%b7%b1%e5%85%a5%e6%8e%a2%e7%b4%a2typescript%e7%b1%bb%e5%9e%8b%e6%96%ad%e8%a8%80%e4%b8%8e%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2%e7%9a%84%e5%b7%ae%e7%95%b0\/","title":{"rendered":"\u6df1\u5165\u63a2\u7d22TypeScript\u7c7b\u578b\u65ad\u8a00\u4e0e\u7c7b\u578b\u8f6c\u6362\u7684\u5dee\u7570"},"content":{"rendered":"

<\/p>\n

TypeScript \u7c7b\u578b\u65ad\u8a00\u4e0e\u7c7b\u578b\u8f6c\u6362\u7684\u6bd4\u8f83<\/h1>\n

TypeScript \u662f\u4e00\u7a2e\u5f37\u578b\u5225\u7684 JavaScript \u8a9e\u8a00\uff0c\u5b83\u53ef\u4ee5\u63d0\u4f9b\u66f4\u591a\u7684\u7a0b\u5f0f\u78bc\u578b\u5225\u5b89\u5168\u6027\uff0c\u4ee5\u53ca\u66f4\u597d\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u5728 TypeScript \u4e2d\uff0c\u7a0b\u5f0f\u78bc\u53ef\u4ee5\u901a\u904e\u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u4f86\u6539\u5584\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39 TypeScript \u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u7684\u6bd4\u8f83\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u7c7b\u578b\u65ad\u8a00\uff1f<\/h2>\n

\u7c7b\u578b\u65ad\u8a00\u662f\u4e00\u7a2e TypeScript \u7684\u8a9e\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u7a0b\u5f0f\u78bc\u4e2d\u6307\u5b9a\u4e00\u500b\u8b8a\u91cf\u7684\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002\u7c7b\u578b\u65ad\u8a00\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u52a0\u7cbe\u78ba\u5730\u6307\u5b9a\u8b8a\u91cf\u7684\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002<\/p>\n

\nlet str: string = 'Hello World';\nlet num: number = (str).length;\n<\/pre>\n
\u5728\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u7c7b\u578b\u65ad\u8a00\u4f86\u6307\u5b9a str \u8b8a\u91cf\u7684\u578b\u5225\u70ba string\uff0c\u7136\u5f8c\u4f7f\u7528 (str) \u4f86\u8a2a\u554f str \u8b8a\u91cf\u7684 length \u5c6c\u6027\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002<\/p>\n
\u4ec0\u9ebc\u662f\u7c7b\u578b\u8f6c\u6362\uff1f<\/h2>\n
\u7c7b\u578b\u8f6c\u6362\u662f\u4e00\u7a2e TypeScript \u7684\u8a9e\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5c07\u4e00\u500b\u8b8a\u91cf\u7684\u578b\u5225\u5f9e\u4e00\u500b\u578b\u5225\u8f49\u63db\u70ba\u53e6\u4e00\u500b\u578b\u5225\u3002\u7c7b\u578b\u8f6c\u6362\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u52a0\u7cbe\u78ba\u5730\u6307\u5b9a\u8b8a\u91cf\u7684\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002<\/p>\n
\nlet str: string = 'Hello World';\nlet num: number = Number(str);\n<\/pre>\n
\u5728\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86\u7c7b\u578b\u8f6c\u6362\u4f86\u5c07 str \u8b8a\u91cf\u7684\u578b\u5225\u5f9e string \u8f49\u63db\u70ba number\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002<\/p>\n
<\/p>\n
\u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u7684\u6bd4\u8f83<\/h2>\n
\u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u90fd\u662f TypeScript \u7684\u8a9e\u6cd5\uff0c\u5b83\u5011\u90fd\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u52a0\u7cbe\u78ba\u5730\u6307\u5b9a\u8b8a\u91cf\u7684\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002\u4f46\u662f\uff0c\u5b83\u5011\u4e4b\u9593\u4e5f\u6709\u4e00\u4e9b\u5340\u5225\uff1a<\/p>\n
    \n
  • \u7c7b\u578b\u65ad\u8a00<\/strong>\u662f\u4e00\u7a2e TypeScript \u7684\u8a9e\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5728\u7a0b\u5f0f\u78bc\u4e2d\u6307\u5b9a\u4e00\u500b\u8b8a\u91cf\u7684\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002<\/li>\n
  • \u7c7b\u578b\u8f6c\u6362<\/strong>\u662f\u4e00\u7a2e TypeScript \u7684\u8a9e\u6cd5\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u5c07\u4e00\u500b\u8b8a\u91cf\u7684\u578b\u5225\u5f9e\u4e00\u500b\u578b\u5225\u8f49\u63db\u70ba\u53e6\u4e00\u500b\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002<\/li>\n<\/ul>\n
    \u7e3d\u7684\u4f86\u8aaa\uff0c\u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u90fd\u662f TypeScript \u7684\u8a9e\u6cd5\uff0c\u5b83\u5011\u90fd\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u52a0\u7cbe\u78ba\u5730\u6307\u5b9a\u8b8a\u91cf\u7684\u578b\u5225\uff0c\u4ee5\u4fbf TypeScript \u7de8\u8b6f\u5668\u53ef\u4ee5\u66f4\u597d\u5730\u6aa2\u6e2c\u7a0b\u5f0f\u78bc\u4e2d\u7684\u932f\u8aa4\u3002\u4f46\u662f\uff0c\u5b83\u5011\u4e4b\u9593\u4e5f\u6709\u4e00\u4e9b\u5340\u5225\uff0c\u958b\u767c\u8005\u61c9\u8a72\u6839\u64da\u81ea\u5df1\u7684\u9700\u6c42\u4f86\u9078\u64c7\u5408\u9069\u7684\u8a9e\u6cd5\u4f86\u6539\u5584\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u6587\u7ae0\u6458\u8981\uff1aTypeScript\u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u8ba9\u5f00\u53d1\u8005\u66f4\u597d\u5730\u63a7\u5236\u7c7b\u578b\u5b89\u5168\u6027\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eTypeScript\u7c7b\u578b\u65ad\u8a00\u548c\u7c7b\u578b\u8f6c\u6362\u7684\u5dee\u7570\uff0c\u4ee5\u53ca\u5b83\u5011\u5728\u7a0b\u5e8f\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528\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-4906","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\/pcFK27-1h8","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4906","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=4906"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4906\/revisions"}],"predecessor-version":[{"id":4907,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4906\/revisions\/4907"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}