摘要: 2.Group By var query= from order in queryOrderList group order by order.ProxyID into g where g.Sum(u => u.Num) >= 5 select g.Key ; 等价于 select t2.Proxy 阅读全文
posted @ 2017-07-12 13:40 连先森 阅读(87) 评论(0) 推荐(0) 编辑