unit1.cpp

<<C++Builder 6实用编程100例>>随书光盘

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
        int a,b;
        try
        {
                a=StrToInt(Edit1->Text);
                b=StrToInt(Edit2->Text);
                Edit3->Text=IntToStr(a/b);
        }
        catch(EConvertError &A)
        {
                ShowMessage("异常处理：请输入整数！");
                Edit3->Text="";
        }
        catch(EDivByZero &E)
        {
                ShowMessage("异常处理：除数不能为零！");
                Edit3->Text="";
        }
        catch(...)
        {
                ShowMessage("发生未知出错");
                Edit3->Text="";
        }
}
//---------------------------------------------------------------------------