摘要:
function cutstr(str, len) { var str_length = 0; var str_len = 0; str_cut = new String(); str_len = str.length; for (var i = 0; i 4) { //中文字符的长度经编码之后大于4 s... 阅读全文
摘要:
function isRepeat(arr) { var hash = {}; for(var i in arr) { if(hash[arr[i]]) return true; hash[arr[i]] = true; } return false; } var a = [1,2,34,5,1] console.... 阅读全文