一个小编程．．急用

来源：百度知道 编辑：UC知道 时间：2024/05/24 16:57:25
设计一个具有+、-、*、/、开方、阶乘、指数、正弦、余弦、正切、求余数功能的简易计算器。

using System;
using System.Drawing;
using System.Windows;
using System.Windows.Forms;
using System.Collections;
using System.ComponentModel;
using System.Data;

namespace comput
{
/// <summary>
/// 这是一个计算器的简单实现。
/// </summary>

public partial class Form1 : System.Windows.Forms.Form
{
#region 控件声明

private System.Windows.Forms.TextBox txtShow;
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.Button btn_rev;
private System.Windows.Forms.Button btn_dot;
private System.Windows.Forms.Button btn_add;
private System.Windows.Forms.Button btn_equ;
private System.Windows.Forms.Button btn_sign;
private System.Windows.Forms.Button btn_sub;
private System.Windows.Forms.Button btn_mul;
private System.Windows.Forms.Bu