07 2020 档案

C# Lamda GroupJoin的使用
摘要：var group = countylist.GroupJoin( list, (countyinfo l1) => new { l1.Countycode }, (Result l2) => new { l2.Countycode }, (item1, item2) => new { item1, 阅读全文
posted @ 2020-07-29 11:24 TTonlyV5 阅读(937) 评论(0) 推荐(1)