typescript: Builder Pattern

 

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/**  * TypeScript 实体类 Model  * Builder Pattern  * 生成器是一种创建型设计模式， 使你能够分步骤创建复杂对象。  * https://stackoverflow.com/questions/12827266/get-and-set-in-typescript  * https://github.com/Microsoft/TypeScript/wiki/Coding-guidelines  */ class UserInfo {     id!: number;     userName!: string;     email!: string;   }       /**    * 车辆实体类    */   class Car { //export       /**      * 序号      */     id!: number;     /**      * 座位      */     seats!: number;     /**      * 发动机      */     engine!: string;      /* constructor(id, seats,engine){         this.id = id;         this.seats = seats;         this.engine=engine;     }*/       /**      * 序号      * @returns  返回序号      */     public  getId(): number { //get         return this.id;     }       /**      * 座位数      * @returns 返回座位数      */     public  getSeats(): number { //get         return this.seats;     }     /**      * 发动机      * @returns 返回发动机型号名称      */     public  getEngine(): string { //get         return this.engine;     }     /**      * 设置座位数      * @param seats 输入数字座位数      */     public setSeats(seats: number) //set     {         this.seats=seats;     }     /**      * 设置发动机型号      * @param engine 输入型号名称      */     public setEngine(engine: string) //set     {         this.engine=engine;     }     /**      *      * @param id      */     public setId(id:number)     {       this.id=id;     }   }     /**  * 继承  */ class Motorcycle extends Car {    /*  id!: number;     seats!: number;     engine!: string;      constructor(id, seats,engine){         this.id = id;         this.seats = seats;         this.engine=engine;     }       public  getId(): number { //get         return this.id;     }       public  getSeats(): number { //get         return this.seats;     }       public  getEngine(): string { //get         return this.engine;     }       public setSeats(seats: number) //set     {         this.seats=seats;     }       public setEngine(engine: string) //set     {         this.engine=engine;     }*/   } /*   interface DuBuilder<Car>()     .id(1)     .setSeats("")     .setEngine("")     .build(); */   /**  * 接口extends Car  */ interface CBuilder {         /**      *      * @param seats      */     setSeats(seats: number): this;     /**      *      * @param engine      */     setEngine(engine: string): this;       /**      *      * @param id      */     setId(id:number):this;     }       /**  * 继承 Builder  */ class CarBuilder implements CBuilder {       /**      * 车信息类      */     private car: Car;         /**      * 实例化      */     constructor() {       this.car = new Car();     }     /**      * 设置座位数      * @param seats 座位号      * @returns 返回座位号      */     public setSeats(seats: number): this {       //this.car.setSeats(seats);             this.car.setSeats(seats);       return this;     }     /**      * 设置发动机型号      * @param engine 发动机型号名称      * @returns      */     public setEngine(engine: string): this {       this.car.setEngine(engine);       return this;     }     /**      * id 序号      * @param id      * @returns      */     public setId(id:number):this{       this.car.setId(id);       return this;     }     /**      * 得到实体      * @returns 返回车信息类      */     public getResult(): Car {       return this.car;     }   }       /**  *  *  */ class MotorcycleBuilder implements CBuilder {       /**      *      */     private motorcycle: Motorcycle;         /**      *      */     constructor() {       this.motorcycle = new Motorcycle();     }     /**      *      * @param seats      * @returns      */     public setSeats(seats: number): this {       this.motorcycle.setSeats(seats);       return this;     }     /**      *      * @param engine      * @returns      */     public setEngine(engine: string): this {       this.motorcycle.setEngine(engine);       return this;     }     /**      *      * @param id      * @returns      */     public  setId(id: number): this {         this.motorcycle.setId(id);         return this;     }     /**      *      * @returns      */     public getResult(): Motorcycle {       return this.motorcycle;     }   }      /**    *    */   class DuDirector {       /**      *      * @returns      */     public buildFerrari(): Car {       return new CarBuilder().setId(1).setSeats(2).setEngine("V-12").getResult();     }     /**      *      * @returns      */     public buildToyota(): Car {       return new CarBuilder().setId(2).setSeats(7).setEngine("V-6").getResult();     }     /**      *      * @returns      */     public buildHonda(): Motorcycle {       return new MotorcycleBuilder().setId(3).setSeats(2).setEngine("V-4").getResult();     }     /**      *      * @returns      */     public buildYamaha(): Motorcycle {       return new MotorcycleBuilder().setId(4).setSeats(1).setEngine("V-2").getResult();     }   }     /**  *  */   const directorBu = new DuDirector();   directorBu.buildFerrari(); directorBu.buildToyota();   directorBu.buildHonda(); directorBu.buildYamaha();   const car = new CarBuilder().setSeats(2).setEngine("V-12").getResult();   const motorcycle = new MotorcycleBuilder()   .setId(100)   .setSeats(2)   .setEngine("V-4")   .getResult();   let pucarid=""+motorcycle.getId(); let pucar1=""+motorcycle.getSeats(); let pucar2=""+motorcycle.getEngine();   let messageCar: string = 'Hello World,This is a typescript!,涂聚文 Geovin Du Web'; document.body.innerHTML = messageCar+"<br/>,id:"+pucarid+",座位数："+pucar1+",发动机型号："+pucar2+","+car.getSeats()+","+car.getEngine()+","+directorBu.buildFerrari().getEngine()+",TypeScript 生成器方法模式"; console.log(motorcycle.getId()); console.log(motorcycle.getSeats()); console.log(motorcycle.getEngine());

　　

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<!doctype html> <html lang="en"> <head>   <meta charset="UTF-8">   <meta name="viewport"         content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">   <meta http-equiv="X-UA-Compatible" content="ie=edge">     <head><title>TypeScript:生成器模式</title>       <meta name="Description" content="geovindu,涂聚文,Geovin Du"/> <meta name="Keywords" content="geovindu,涂聚文,Geovin Du"/> <meta name="author" content="geovindu,涂聚文,Geovin Du"/>      </head>     <body>         <script src="dist/CarBuilderts.js"></script>     </body> </html>

　　

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