procedure TForm1.Button2Click(Sender: TObject); var R: Variant; begin R := MemTableEh1.Lookup(‘Name‘,Edit1.Text,‘Name‘); if not VarIsNull(R) then ShowMessage(R); end;
原文地址:https://www.cnblogs.com/jijm123/p/11269176.html
时间: 2024-10-19 20:27:17
procedure TForm1.Button2Click(Sender: TObject); var R: Variant; begin R := MemTableEh1.Lookup(‘Name‘,Edit1.Text,‘Name‘); if not VarIsNull(R) then ShowMessage(R); end;
原文地址:https://www.cnblogs.com/jijm123/p/11269176.html