基础 - 闭包·

闭包

通俗的讲，函数去访问其他函数的局部变量

function funSome() {
        var some = 0;
        function funBack() {
            console.log(++some);
        }
        return funBack;
    }

    var funSomeOne = funSome();
    funSomeOne();
    funSomeOne();

    var funSomeTwo = funSome();
    funSomeTwo();
    funSomeTwo();