摘要: function f(x) { console.log(x, arguments[0]); // 2 2 x = 3; console.log(x, arguments[0]); // 3 3 arguments[0] = 4; console.log(x, arguments[0]); // 4 阅读全文
posted @ 2017-06-06 15:13 ax=null 阅读(112) 评论(0) 推荐(0)