摘要: var arr1 = new Array(12,23,34,56); var arr2 = new Array(121,232,343,564); Array.prototype.sum = function(){ var result = 0; for(var i=0;i<this.length; 阅读全文
posted @ 2016-07-15 21:45 Leo、菜鳥 阅读(864) 评论(0) 推荐(0) 编辑