ts 语法测试

//interface 定义对象结构测试
interface abc {
  a: string,
  b: number,
  c?: Array<String>
}


interface cbd extends abc {
  alert: Function
};

// class用来实现抽象接口的具体行为
class mycls implements cbd {
  a: string;
  b: number;
  static c:number=2342343234;
  constructor(){
    this.a="sykdfjsldfsdf"
    this.b=23424234
    console.log(this.b,"vsslkdjfskfsdfkjsl")
  }
  alert() {
    console.log(this.alert, "slkfjlskdfjlskfd")
  }

  static fn1(){
    console.log(this.c,"slkfjslkfjslkdf")
  }
}

console.log("test")
mycls.fn1()

interface result{
  msg:string,
  code:number,
  data:any
}

//type 定义数据类型测试
type ddd=abc & {
  d:result
}

let dddDemo:ddd={
  a:"ksjflksdfs",
  b:23423423434,
  d:{
    msg:"成功",
    code:0,
    data:{}
  }
}

console.log(dddDemo,"dddDemo")


interface eee extends ddd{

}

//interface接口用来描述对象结构
let myobj1:eee={
  a:'234234242',
  b:234234234,
  d:{
    msg:"成功",
    code:0,
    data:{}
  }
}

console.log(myobj1,"myobj1")

enum RouterSource{
  Frontend = 'frontend',
  Backend = 'backend'
}

enum myenum{
  FALSE=0,
  TRUE=1
} //说明枚举也是用来限定数据范围


let enum12:myenum=0;
console.log(enum12,"enum12")



function myfanxing<T>(a:T):Array<T>{
  let abc:T=a;
  return [abc]
}

let mmmm:unknown;

mmmm=<string>"slkfjsdljsdf" //类型断言

let uuu=myfanxing<string>(mmmm as string) //类型断言

console.log(uuu,"uuu")