diff --git a/PortProxyTool.Cli/Program.cs b/PortProxyTool.Cli/Program.cs
index 30ca826..ac14b3d 100644
--- a/PortProxyTool.Cli/Program.cs
+++ b/PortProxyTool.Cli/Program.cs
@@ -102,12 +102,13 @@ internal static class Program
 
                             break;
                         }
-                        case 3:
-                            AnsiConsole.MarkupLine("[red]用法错误[/]");
+                        default:
+                            AnsiConsole.MarkupLine(
+                                "[red]用法错误[/][gray]:[/] [white]get [gray][[v4tov4/v4tov6/v6tov6/v6tov4]][/][/]");
                             break;
                     }
 
-                    break;
+                    return;
                 default:
                     AnsiConsole.MarkupLine("[red]命令没有找到[/][gray]:[/] [white]接受的命令为 add, remove, list[/]");
                     return;