web0331/10.ts/1.初始/2.ts

// any 任意类型
let a;
a = 12;
a = 'hi';
a = false;
// 报错仍可以编译
let b = 1;
// b = '11';

function fn1(x:number,y:string):string {
    return '12';
}
fn1(1,"2")

export {}