"use strict";
var obj = {
    name: '张三'
};
function fn3() {
    console.log(this.name, 'this');
    return this.name;
}
console.log(fn3.call(this.obj));
let rr = 12;
rr = false;
let we;
we = 'str';
we = 12345;
function test(x, y) {
    console.log('test');
    return x + y;
}
test(32, 54);
let x = document.getElementById("app");