添加 SplitAndConcatenate 方法处理 IP 地址字符串

IRaCIS.Core.Application/Service/Management/UserService.cs

@@ -1031,10 +1031,16 @@ namespace IRaCIS.Core.Application.Service
 
             var iPRegion = string.Join('|', ipinfo.Split('|').TakeLast(3));
 
+            string SplitAndConcatenate(string input)
+            {
+                string[] parts = input.Split('|');
+                return parts.Length >= 3 ? parts[0] + parts[1] : string.Join("", parts);
+            }
+
             if (loginUser.LastLoginIP != string.Empty)
             {
                 // 与上一次IP不一致
-                if (loginUser.LastLoginIP != iPRegion)
+                if (SplitAndConcatenate(loginUser.LastLoginIP) !=SplitAndConcatenate(iPRegion))
                 {
                     loginUser.LoginState = 2;
                 }