摘要: //列求和 datatable.AsEnumerable().Sum(c => (ConvertEx.ToDecimal(c["列名"]))).ToString(); //list去重 strlist = strlist.Where((x, i) => strlist.FindIndex(z => 阅读全文
posted @ 2021-02-22 20:29 逸晨89 阅读(214) 评论(0) 推荐(0)