snake算法C++课程设计（计算器）

C++课程设计（计算器）

我有一个 c#的 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 WindowsFormsApplication5 { public partial class Form1 : Form { double a, b, c; int d=0; bool IsDigit = true; bool IsNew = true; public Form1() { InitializeComponent(); } private void btnval0_Click(object sender, EventArgs e) { Button btn = (Button)sender; if (IsNew) { alue.Text = btn.Text; IsNew = false; } else alue.Text += btn.Text; } private void btnAdd_Click(object sender, EventArgs e) { if (IsDigit) BtnResult_Click(sender, e); d = 1; a = double.Parse(alue.Text); IsNew = true; } private void btnsub_Click(object sender, EventArgs e) { if (IsDigit) BtnResult_Click(sender, e); d = 2; a = double.Parse(alue.Text); IsNew = true; } private void btnMulti_Click(object sender, EventArgs e) { if (IsDigit) BtnResult_Click(sender, e); d = 3; a = double.Parse(alue.Text); IsNew = true; } private void btnDiv_Click(object sender, EventArgs e) { if (IsDigit) BtnResult_Click(sender, e); d = 4; a = double.Parse(alue.Text); IsNew = true; } private void BtnResult_Click(object sender, EventArgs e) { b = double.Parse(alue.Text); switch (d) { case 1: c = a + b; break; case 2: c = a - b; break; case 3: c = a * b; break; case 4: c = a / b; break; } if(d!=0)alue.Text = c.ToString(); IsNew = true; } } }