delphi
Function TForm1.My_Execute(id:integer;cstr:string;ADOQuery:TADOQuery):integer;
Begin
result:=0;
Try
ADOQuery.Close;
ADOQuery.SQL.Text :=cstr;
If id=0 Then ADOQuery.Open;
If id=1 Then Begin
ADOQuery.ExecSQL;
End;
Except
on E:exception Do Begin
showmessage(e.Message);
result:=1;
End;
End;
End;这段中，怎么理解阿，特别是这一句，on E:exception Do Begin
请大家帮帮忙，
