fix 电子餐券余额查询问题

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

@@ -553,7 +553,7 @@ public class OrderService : BaseOrderService, IOrderService
             //获取餐券余额
             var data = await DbContext.Queryable<EMealVoucherEntity>()
                 .LeftJoin<EMealVoucherDetailEntity>((x, d) => x.No == d.No)
-                .Where((x, d) => d.IdNo == idNo)
+                .Where((x, d) => x.No == no && d.IdNo == idNo)
                 .Select((x, d) => new OrderResultResponse
                 {
                     CurrentBalance = d.Balance