求解delphi7 新建窗口弹出出错

Question

procedure Tfrm_main.dbbl_readClick(Sender: TObject);
var
frm_rfidread:Tfrm_rfidread;
begin
frm_rfidread.Create(nil);
frm_rfidread.ShowModal;
frm_rfidread.Free;
end;

报错:
Access violation at address 0088862b in module '.exe' .read of address 00000000

Answer 1

你的程序中有野指针，问题可能在frm_rfidread的构造函数中或者formload事件中，调试下看看