TypeScript - 任意类型值

任意值（Any）用来表示允许赋值为任意类型。

let myFavoriteNumber: any = 'seven';
myFavoriteNumber = 7;

变量如果在声明的时候，未指定其类型，那么它会被识别为任意值类型

let something;
something = 'seven';
something = 7;

something.setName('Tom');

等价于

let something: any;
something = 'seven';
something = 7;

something.setName('Tom');