6.typescript类

傷城~ 2024-04-07 13:08 54阅读 0赞

## 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