摘要： <script> var arr = [1,1,1,2,2,12,12,1,1,"a","a","a","c","c","你","你","我","我"]; //第一种,通过双层循环删除后面与其相等的元素， function qucg1(arr){ for(var i=0;i<arr.length-1 阅读全文