fix 查询条件

Src/Dlhis.Canteen/Order/Services/Implements/OrderService.cs

@@ -123,6 +123,7 @@ public class OrderService : BaseOrderService, IOrderService
         var data = await DbContext.Queryable<GainfoMealEntity>()
             .LeftJoin<GainfoEntity>((x, ga) => x.UserNo == ga.No)
             .LeftJoin<DepartmentEntity>((x, ga, department) => ga.DepartmentNo == department.No)
+            .Where(x => x.UserNo == gainfo.No)
             .Select((x, ga, department) => new OrderResultResponse
             {
                 UserCode = ga.Code,
@@ -131,7 +132,7 @@ public class OrderService : BaseOrderService, IOrderService
                 DepartmentName = department.Name,
                 CurrentBalance = x.Balance
             })
-            .FirstAsync();
+            .SingleAsync();
 
         return new DefaultApiResult<OrderResultResponse>
         {