6.接口-接口的继承与继承其他类的约束

接口的继承

interface Person {
    fname: string;
    age: number;
    eat():void
}

// 通过extends实现接口的继承
interface WorkerMan extends Person {
    profession: string;
    yearsOfWork: number;
    coding():void
}



// 继承出来的接口，用于约束类
class WorkerPerson implements WorkerMan {
    fname: string;
    age: number;
    profession: string;
    yearsOfWork: number;
    constructor (f:string, a:number, p:string, y:number) {
        this.fname = f;
        this.age = a;
        this.profession = p;
        this.yearsOfWork = y;
    }

    eat() {

    }

    coding() {

    }
}

类既可以被接口约束，还可继承其他的类

类可与继承其他类，但依然会被接口约束

interface Person {
    fname: string;
    age: number;
    eat():void
}

// 通过extends实现接口的继承
interface WorkerMan extends Person {
    profession: string;
    yearsOfWork: number;
    coding():void
}

// 某个类，即可被接口约束，还可称为超类的子类
class Home {
    address:string;
    constructor(addre:string) {
        this.address = addre;
    }
}

// 继承于其他类，还可被接口约束
class WorkerPersonHome extends Home implements WorkerMan {
    fname: string;
    age: number;
    profession: string;
    yearsOfWork: number;
    constructor (f:string, a:number, p:string, y:number, ad:string) {
        super(ad); // 
        this.fname = f;
        this.age = a;
        this.profession = p;
        this.yearsOfWork = y;
    }

    eat() {

    }

    coding() {

    }
}