摘要: var str = "abcdefgaaaaaaddda";var obj = {};var arr = [];var letter;for(var i = 0,len = str.length;i<len;i++){letter = str[i];if(!obj[letter]){obj[lett... 阅读全文
posted @ 2014-07-21 19:32 天边、浅吟 阅读(226) 评论(0) 推荐(0)