闭包2

案例

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title></title>
    <link rel="stylesheet" href="">
</head>
<body>
    
</body>
</html>
<script>
    function outFn(a)  {
        return function (b) {
            console.log(a+b);
        }
    }
    var fn1 = outFn(5);
    fn1(6);//11
</script>
【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/darkterror/p/6241522.html