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
摘要:
1. Create the Application 1. Create the Application To keep things simple we’re going to build a basic console application that uses Code First to per 阅读全文