摘要: List<string> str = new List<string> {"a","b","a","a","c","b","c","c","d","c"}; var tt = from ps in str group ps by ps 阅读全文
posted @ 2017-06-22 16:01 巴蒂尔 阅读(890) 评论(0) 推荐(0) 编辑