typescript|6.typescript类

类的定义

class Person { name: string; constructor(n: string) { this.name = n; } run(): void { console.log(this.name+ "在听歌"); } } var p = new Person("林扬生"); p.run(); --- var Person = (function () { function Person(n) { this.name = n; } Person.prototype.run = function () { console.log(this.name + "在听歌"); }; return Person; }()); var p = new Person("林扬生"); p.run(); //林扬生在听歌 --- class Person { name; constructor(name) { this.name = name; } run() { console.log(this.name + "在听歌"); } } var p = new Person("林扬生"); p.run(); //林扬生在听歌

类的继承
class Person { name: string; constructor(name: string) { this.name = name; } run(): void { console.log(this.name + "在听歌"); } } class dowhat extends Person { age: number; constructor(name: string, age: number) { super(name); this.age = age; } do(): void { super.run(); console.log(this.name + "在打游戏"); } } var p = new dowhat("林扬生", 24); p.do(); --- var __extends = (this && this.__extends) || (function () { var extendStatics = function (d, b) { extendStatics = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; return extendStatics(d, b); }; return function (d, b) { if (typeof b !== "function" && b !== null) throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); extendStatics(d, b); function __() { this.constructor = d; } d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); }; })(); var Person = /** @class */ (function () { function Person(name) { this.name = name; } Person.prototype.run = function () { console.log(this.name + "在听歌"); }; return Person; }()); var dowhat = /** @class */ (function (_super) { __extends(dowhat, _super); function dowhat(name, age) { var _this = _super.call(this, name) || this; _this.age = age; return _this; } dowhat.prototype["do"] = function () { console.log(this.name + "在打游戏"); }; return dowhat; }(Person)); var p = new dowhat("林扬生", 24); p["do"](); --- class Person { name; constructor(name) { this.name = name; } run() { console.log(this.name + "在听歌"); } } class dowhat extends Person { age; constructor(name, age) { super(name); this.age = age; } do() { super.run(); console.log(this.name + "在打游戏"); } } var p = new dowhat("林扬生", 24); p.do(); //林扬生在听歌林扬生在打游戏

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