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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();
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原文地址:http://www.cnblogs.com/WeWeZhang/p/5786760.html