c#写的小型计算器 缺少一个功能 大家帮帮忙看看!小弟我是新手
c#写的小型计算器 缺少一个功能 大家帮帮忙看看!我是新手
不多说先上代码:
不多说先上代码:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication7
{
public partial class Form1 : Form
{
public enum CalcuType
{
None,
/// <summary>
/// 加法
/// </summary>
Addition,
/// <summary>
/// 减法
/// </summary>
Substraction,
/// <summary>
/// 乘法
/// </summary>
Multiplication,
/// <summary>
/// 除法
/// </summary>
Division,
/// <summary>
/// 乘方
/// </summary>
Involution,
/// <summary>
/// 开方
/// </summary>
Square,
}
private double? _ValueF =null;//表示可为数字或者null
private double? _ValueL =null;
private CalcuType _CalulateType = CalcuType.None;
private bool _isNew = false;
string numberStr;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)//动态注册btnVal的click事件
{