{"id":5088,"date":"2023-01-05T11:53:46","date_gmt":"2023-01-05T03:53:46","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5088"},"modified":"2023-01-05T11:53:46","modified_gmt":"2023-01-05T03:53:46","slug":"%e5%ad%b8%e7%bf%92typescript%e7%b1%bb%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92typescript%e7%b1%bb%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95\/","title":{"rendered":"\u5b78\u7fd2TypeScript\u7c7b\u7684\u57fa\u672c\u7528\u6cd5"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, Classes, \u7528\u6cd5\"><\/p>\n<h1>TypeScript \u7c7b(classes)\u7684\u57fa\u672c\u7528\u6cd5<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u985e\u4f3c\u65bc\u9762\u5411\u5c0d\u8c61\u7de8\u7a0b\u8a9e\u8a00\u7684\u7279\u6027\uff0c\u4f8b\u5982\u985e\u548c\u63a5\u53e3\u3002TypeScript \u7684\u985e\u53ef\u4ee5\u7528\u4f86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u6a21\u578b\uff0c\u4e26\u4e14\u53ef\u4ee5\u5c07\u5c0d\u8c61\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u7d44\u7e54\u5728\u4e00\u8d77\u3002<\/p>\n<p><!--more--><\/p>\n<p>TypeScript \u7684\u985e\u53ef\u4ee5\u4f7f\u7528 <code>class<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528 <code>constructor<\/code> \u4f86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u521d\u59cb\u5316\u51fd\u6578\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u5b9a\u7fa9\u4e00\u500b <code>Person<\/code> \u985e\u7684\u793a\u4f8b\uff1a<\/p>\n<pre class=\"brush: typescript\">\nclass Person {\n    constructor(public name: string, public age: number) {\n    }\n}\n<\/pre>\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b <code>Person<\/code> \u985e\uff0c\u5b83\u6709\u5169\u500b\u5c6c\u6027\uff1a<code>name<\/code> \u548c <code>age<\/code>\u3002\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>constructor<\/code> \u4f86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u521d\u59cb\u5316\u51fd\u6578\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528 <code>public<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u5c6c\u6027\u3002<\/p>\n<p>\u9664\u4e86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u5c6c\u6027\u5916\uff0cTypeScript \u7684\u985e\u9084\u53ef\u4ee5\u5b9a\u7fa9\u5c0d\u8c61\u7684\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u5b9a\u7fa9 <code>Person<\/code> \u985e\u7684\u65b9\u6cd5\u7684\u793a\u4f8b\uff1a<\/p>\n<pre class=\"brush: typescript\">\nclass Person {\n    constructor(public name: string, public age: number) {\n    }\n\n    sayHello() {\n        console.log(`Hello, my name is ${this.name}`);\n    }\n}\n<\/pre>\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b <code>sayHello<\/code> \u65b9\u6cd5\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u6253\u5370\u51fa\u5c0d\u8c61\u7684\u540d\u5b57\u3002<\/p>\n<p>TypeScript \u7684\u985e\u9084\u53ef\u4ee5\u5b9a\u7fa9\u7e7c\u627f\u95dc\u4fc2\uff0c\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u5b9a\u7fa9 <code>Student<\/code> \u985e\u7e7c\u627f <code>Person<\/code> \u985e\u7684\u793a\u4f8b\uff1a<\/p>\n<pre class=\"brush: typescript\">\nclass Student extends Person {\n    constructor(name: string, age: number, public major: string) {\n        super(name, age);\n    }\n\n    sayHello() {\n        console.log(`Hello, my name is <span class=\"katex math inline\">{this.name} and I'm studying<\/span>{this.major}`);\n    }\n}\n<\/pre>\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b <code>Student<\/code> \u985e\uff0c\u5b83\u7e7c\u627f\u4e86 <code>Person<\/code> \u985e\uff0c\u4e26\u4e14\u5b9a\u7fa9\u4e86\u4e00\u500b\u65b0\u7684\u5c6c\u6027 <code>major<\/code>\u3002\u6211\u5011\u9084\u91cd\u5beb\u4e86 <code>sayHello<\/code> \u65b9\u6cd5\uff0c\u4ee5\u4fbf\u6253\u5370\u51fa\u5b78\u751f\u7684\u5c08\u696d\u3002<\/p>\n<p>TypeScript \u7684\u985e\u53ef\u4ee5\u7528\u4f86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u6a21\u578b\uff0c\u4e26\u4e14\u53ef\u4ee5\u5c07\u5c0d\u8c61\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u7d44\u7e54\u5728\u4e00\u8d77\u3002TypeScript \u7684\u985e\u53ef\u4ee5\u4f7f\u7528 <code>class<\/code> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\uff0c\u4e26\u4e14\u53ef\u4ee5\u4f7f\u7528 <code>constructor<\/code> \u4f86\u5b9a\u7fa9\u5c0d\u8c61\u7684\u521d\u59cb\u5316\u51fd\u6578\uff0c\u9084\u53ef\u4ee5\u5b9a\u7fa9\u5c0d\u8c61\u7684\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5b9a\u7fa9\u7e7c\u627f\u95dc\u4fc2\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1aTypeScript\u7c7b\u662f\u4e00\u7a2e\u9762\u5411\u5c0d\u8c61\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5b83\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u5275\u5efa\u548c\u7ba1\u7406\u5927\u578b\u61c9\u7528\u7a0b\u5e8f\u3002\u672c\u6587\u5c07\u4ecb\u7d39TypeScript\u7c7b\u7684\u57fa\u672c\u7528\u6cd5\uff0c\u5305\u62ec\u5b9a\u7fa9\u985e\u3001\u5c6c\u6027\u3001\u65b9\u6cd5\u3001\u69cb\u9020\u51fd\u6578\u7b49\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-5088","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\/pcFK27-1k4","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5088","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=5088"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5088\/revisions"}],"predecessor-version":[{"id":5089,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5088\/revisions\/5089"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}