关于this的指向问题
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>this指向问题</title>
</head>
<body>
<script>
var name ="windowName";
var a ={
name:'cherry',
fn:function () {
console.log(this.name)
}
}
window.a.fn() //只看最后一个调用者(这里就是a)
</script>
</body>
</html>
运行结果
