简单的计算器代码实例:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace Calculator
{
public partial class Form1 : Form
{
private long iNum1;
private char cOperator;
private bool bNumBegins;
public Form1()
{
InitializeComponent();
InitMembers();
}