修改部分接口返回

GDZZ.Application/Service/WXPay/WXPayService.cs

@@ -130,7 +130,7 @@ namespace GDZZ.Application.Service.WXPay
 
             var comrep =  await this.ComsumeRep.Where(x=>x.ResumeID== ResumeID).FirstAsync();
             if(!comrep.IsNullOrZero())  //已经消费过了
-                return;
+                return "";
 
             var ban = await this.balance.Where(x => x.UserID == UserManager.UserId).FirstAsync();
             if (ban == null)