<!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<title>Title</title></head><body></body><script>name=‘randomlee‘;function func() { ???var name=‘lee‘; ???function inner() { ???????console.log(name); ???} ????var name=‘random‘; ???return inner;}var ret =func();ret();console.log(name)</script></html>js的作用域作用在函数体内且在函数执行之前作用域就已经生成
js之作用域
原文地址：https://www.cnblogs.com/randomlee/p/9826551.html