diff --git a/asg_form/Controllers/InviteReferee.cs b/asg_form/Controllers/InviteReferee.cs
index 4d77afc..be14bdd 100644
--- a/asg_form/Controllers/InviteReferee.cs
+++ b/asg_form/Controllers/InviteReferee.cs
@@ -50,23 +50,29 @@ namespace asg_form.Controllers
                     var userInvited = await userManager.Users.FirstOrDefaultAsync(x => x.Id == msg.invitedId);
                     if (userInvited == null) return Ok(new { code = 404, message = "用户未找到" });
 
-                    var invitationRecord = await sb.T_Invitation.FindAsync(msg.invitedId);
-
+                    var invitationRecord =  sb.T_Invitation.FirstOrDefault(c => c.user_id == msg.invitedId);
+                   
                     if (invitationRecord != null)
                     {
                         if (invitationRecord.my_request.Any(req => req.invitor_id == userId && req.match_id == msg.matchId))
                         {
                         return Ok(new { code = 409, message = "邀请已存在" }); 
                         }
+                        invitationRecord.my_request.Add((invitor_id: (int)userId, match_id: msg.matchId));
+                        await sb.SaveChangesAsync();
                     }
-                    invitationRecord = new InviteBg
+                    else
                     {
-                        user_id = msg.invitedId,
-                        my_request = new List<(int, int)>()
-                    };
-                    invitationRecord.my_request.Add((invitor_id: (int)userId, match_id: msg.matchId));
-
-                    await sb.SaveChangesAsync();
+                        invitationRecord = new InviteBg
+                        {
+                            user_id = msg.invitedId,
+                            my_request = new List<(int, int)>()
+                        };
+                        invitationRecord.my_request.Add((invitor_id: (int)userId, match_id: msg.matchId));
+                        sb.T_Invitation.Add(invitationRecord);
+                        await sb.SaveChangesAsync();
+                    }
+                    
                     var data = new
                     {
                         invitedId = (int)userId,