JackingHuang

> ``` > function setTimeout(fn, time) { > let flag = true; > const start = new Date(); > while (flag) { > const end = new Date() > if(end...

 应该是 yideng is 21 ƒ sayHi(age) {return ${this.name} is ${age};} ；yideng is 5 这个 5从什么地方来的？？？