fixes #ITYG4

src/Add-on/Mirror.ts

@@ -55,14 +55,14 @@ export class MirrorCommand implements Command
             return;
 
         let kwRes = await app.m_Editor.GetKeyWords({
-            Msg: "是否删除源对象",
+            Msg: "是否保留源对象",
             KeyWordList: [{ msg: "是", key: "Y" }, { msg: "否", key: "N" }]
         });
         if (kwRes.Status === PromptStatus.Cancel)
             return;
 
         JigUtils.End();
-        if (kwRes.StringResult === "Y")
+        if (kwRes.StringResult === "N")
             ens.forEach(en => en.Erase());
         cloneEns.forEach(en => app.m_Database.ModelSpace.Append(en));
     }