1、where \sum
1、条件查询List.Where(e => e.Status == 5).ToList().Count();
List.Where(e => e.Status == 5).Sum(e => e.FangKuanMoney)
2、GroupBy、First
Apply_CustodianBankList.GroupBy(p => p.City).Select(f => f.First()).ToList()
转载于:https://www.cnblogs.com/eric-gms/p/4244548.html
