typescript接口扩展、接口的继承

 //接口扩展：接口可以继承接口   

     // interface Animal{

     //     eat():void;
     // }

     // interface Person extends Animal{

     //     work():void;
     // }

     // class Web implements Person{

     //     public name:string;
     //     constructor(name:string){
     //         this.name=name;
     //     }

     //     eat(){

     //         console.log(this.name+'喜欢吃馒头')
     //     }
     //     work(){

     //         console.log(this.name+'写代码');
     //     }

     // }

     // var w=new Web('小李');

     // w.eat();

     interface Animal{

         eat():void;
     }

     interface Person extends Animal{

         work():void;
     }

     class Programmer{

         public name:string;
         constructor(name:string){
             this.name=name;
         }

         coding(code:string){

             console.log(this.name+code)
         }
     }

     class Web extends Programmer implements Person{

         constructor(name:string){
            super(name)
         }
         eat(){

             console.log(this.name+'喜欢吃馒头')
         }
         work(){

             console.log(this.name+'写代码');
         }

     }

     var w=new Web('小李');

     // w.eat();

     w.coding('写ts代码');