8.接口和只读属性

一、接口和只读属性

/* public-static-readonly */
interface attrs{
    readonly id:number;
    name:string;
    /* 可选属性 */
    age?:number;
}
var obj:attrs={
    id:12,
    name:"lisi"
}
obj.name = "zhang";
obj.id = 14;  //error
console.log(obj);