請問大家 ====在form1的=== void __fastcall TfrmAdmin::btnOptClick(TObject *Sender) { //this function is go to Option's form Echo_Message("button 2" ,false); TfrmOption *frmOption; try { frmOption = new TfrmOption(Application); frmOption->ShowModal(); delete frmOption; } catch (Exception &exception) { delete frmOption; Application->ShowException(&exception); } } //--------------------------------------------------------------------------- -在form2 void __fastcall TfrmOption::btnUpdataClick(TObject *Sender) { //Updata Setup Option function int port; port = StrToInt(edtPort->Text); if (isdigit(port)) Application->MessageBox("Invalid Port","Error",MB_OK); } //--------------------------------------------------------------------------- 結果出現錯誤訊息