标准计算器C#实现 课程作业一

程序设计实践课程作业一

好久没用的blog了， 以后还是要把自己的东西整理一下，看到周围的人变得越来越强，我越来越想当只咸鱼，划划水的了

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace 计算器
{
    
    public partial class Form1 : Form
    {
        Stack st = new Stack();
        double num1,num2,temp;
        string Operator;

        //列表初始化
        public Form1()
        {
            InitializeComponent();
            textBox1.Text = "";
        }

        //添加字符.
        private void Button_dian_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBox1.Text))
                textBox1.Text = "0.";
            else if (!textBox1.Text.Contains("."))
                textBox1.Text += ".";
        }

        //添加字符0
        private void Button7_Click(object sender, EventArgs e)
        {
            textBox1.Text += "0";
        }
        
        //添加字符1
        private void Button1_Click(object sender, EventArgs e)
        {
            textBox1.Text += "1";
        }

        //添加字符2
        private void Button2_Click(object sender, EventArgs e)
        {
            textBox1.Text += "2";
        }

        //添加字符3
        private void Button3_Click(object sender, EventArgs e)
        {
            textBox1.Text += "3";
        }
        
        //添加字符4
        private void Button4_Click(object sender, EventArgs e)
        {
            textBox1.Text += "4";
        }

        //添加字符5
        private void Button5_Click(object sender, EventArgs e)
        {
            textBox1.Text += "5";
        }

        //添加字符6
        private void Button6_Click(object sender, EventArgs e)
        {
            textBox1.Text += "6";
        }

        //添加字符7
        private void Button9_Click(object sender, EventArgs e)
        {
            textBox1.Text += "7";
        }

        //添加字符8
        private void Button10_Click(object sender, EventArgs e)
        {
            textBox1.Text += "8";
        }

        //添加字符9
        private void Button11_Click(object sender, EventArgs e)
        {
            textBox1.Text += "9";
        }
        

        //加法运算
        private void button_add_Click(object sender, EventArgs e)
        {
            try
            {
                st.Push(textBox1.Text);
                if(st.Count >= 3)
                {
                    num1 = Convert.ToDouble(st.Pop());
                    Operator = Convert.ToString(st.Pop());
                    num2 = Convert.ToDouble(st.Pop());
                    //temp = num1 + num2;
                    //st.Push(temp);

                    if(Operator == "+")
                    {
                        temp = num1 + num2;
                        st.Push(temp);
                    }
                    else if(Operator == "-")
                    {
                        temp = num2 - num1;
                        st.Push(temp);

                    }
                    else if(Operator == "*")
                    {
                        temp = num2 * num1;
                        st.Push(temp);
                    }
                    else if(Operator == "/")
                    {
                        temp = num2 / num1;
                        st.Push(temp);
                    }
                    else if(Operator == "%")
                    {
                        temp = num2 % num1;
                        st.Push(temp);
                    }
                    textBox1.Text = temp.ToString();
                }
                st.Push("+");
                textBox1.Text = "";
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
        }

        //减法运算
        private void button_jian_Click(object sender, EventArgs e)
        {
            try
            {
                st.Push(textBox1.Text);
                if (st.Count >= 3)
                {
                    num1 = Convert.ToDouble(st.Pop());
                    Operator = Convert.ToString(st.Pop());
                    num2 = Convert.ToDouble(st.Pop());
                    

                    if (Operator == "+")
                    {
                        temp = num1 + num2;
                        st.Push(temp);
                    }
                    else if (Operator == "-")
                    {
                        temp = num2 - num1;
                        st.Push(temp);

                    }
                    else if (Operator == "*")
                    {
                        temp = num2 * num1;
                        st.Push(temp);
                    }
                    else if (Operator == "/")
                    {
                        temp = num2 / num1;
                        st.Push(temp);
                    }
                    else if (Operator == "%")
                    {
                        temp = num2 % num1;
                        st.Push(temp);
                    }
                    textBox1.Text = temp.ToString();
                }
                st.Push("-");
                textBox1.Text = "";
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
        }

        //乘法运算
        private void Button_cheng_Click(object sender, EventArgs e)
        {
            try
            {
                st.Push(textBox1.Text);
                if (st.Count >= 3)
                {
                    num1 = Convert.ToDouble(st.Pop());
                    Operator = Convert.ToString(st.Pop());
                    num2 = Convert.ToDouble(st.Pop());
                    

                    if (Operator == "+")
                    {
                        temp = num1 + num2;
                        st.Push(temp);
                    }
                    else if (Operator == "-")
                    {
                        temp = num2 - num1;
                        st.Push(temp);

                    }
                    else if (Operator == "*")
                    {
                        temp = num2 * num1;
                        st.Push(temp);
                    }
                    else if (Operator == "/")
                    {
                        temp = num2 / num1;
                        st.Push(temp);
                    }
                    else if (Operator == "%")
                    {
                        temp = num2 % num1;
                        st.Push(temp);
                    }
                    textBox1.Text = temp.ToString();
                }
                st.Push("*");
                textBox1.Text = "";
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
        }

        //除法运算
        private void Button_chu_Click(object sender, EventArgs e)
        {
            try
            {
                st.Push(textBox1.Text);
                if (st.Count >= 3)
                {
                    num1 = Convert.ToDouble(st.Pop());
                    Operator = Convert.ToString(st.Pop());
                    num2 = Convert.ToDouble(st.Pop());
                    
                    if (Operator == "+")
                    {
                        temp = num1 + num2;
                        st.Push(temp);
                    }
                    else if (Operator == "-")
                    {
                        temp = num2 - num1;
                        st.Push(temp);

                    }
                    else if (Operator == "*")
                    {
                        temp = num2 * num1;
                        st.Push(temp);
                    }
                    else if (Operator == "/")
                    {
                        temp = num2 / num1;
                        st.Push(temp);
                    }
                    else if (Operator == "%")
                    {
                        temp = num2 % num1;
                        st.Push(temp);
                    }
                    textBox1.Text = temp.ToString();
                }
                st.Push("/");
                textBox1.Text = "";
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
        }

        //取余运算
        private void button7_Click_1(object sender, EventArgs e)
        {
            try
            {
                st.Push(textBox1.Text);
                if (st.Count >= 3)
                {
                    num1 = Convert.ToDouble(st.Pop());
                    Operator = Convert.ToString(st.Pop());
                    num2 = Convert.ToDouble(st.Pop());

                    if (Operator == "+")
                    {
                        temp = num1 + num2;
                        st.Push(temp);
                    }
                    else if (Operator == "-")
                    {
                        temp = num2 - num1;
                        st.Push(temp);

                    }
                    else if (Operator == "*")
                    {
                        temp = num2 * num1;
                        st.Push(temp);
                    }
                    else if (Operator == "/")
                    {
                        temp = num2 / num1;
                        st.Push(temp);
                    }
                    else if (Operator == "%")
                    {
                        temp = num2 % num1;
                        st.Push(temp);
                    }
                    textBox1.Text = temp.ToString();
                }
                st.Push("%");
                textBox1.Text = "";
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
        }

        //等于 计算总表达式
        private void Button16_Click(object sender, EventArgs e)
        {
            try
            {
                st.Push(textBox1.Text);
                if (st.Count >= 3)
                {
                    num1 = Convert.ToDouble(st.Pop());
                    Operator = Convert.ToString(st.Pop());
                    num2 = Convert.ToDouble(st.Pop());
                    temp = num1 / num2;
                    st.Push(temp);

                    if (Operator == "+")
                    {
                        temp = num1 + num2;
                        st.Push(temp);
                    }
                    else if (Operator == "-")
                    {
                        temp = num2 - num1;
                        st.Push(temp);
                    }
                    else if (Operator == "*")
                    {
                        temp = num2 * num1;
                        st.Push(temp);
                    }
                    else if (Operator == "/")
                    {
                        temp = num2 / num1;
                        st.Push(temp);
                    }
                    else if (Operator == "%")
                    {
                        temp = num2 % num1;
                        st.Push(temp);
                    }
                    textBox1.Text = temp.ToString();
                }
                textBox1.Text = temp.ToString();
                st.Clear();
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
        }

        //退格
        private void button13_Click(object sender, EventArgs e)
        {
            try
            {
                textBox1.Text = textBox1.Text.Substring(0, textBox1.Text.Length - 1);
            }
            catch
            {
                MessageBox.Show("已经为空，无法再退格了", "错误", MessageBoxButtons.OK);
            }
        }

        //清空C
        private void button_c_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
            st.Clear();
        }

        //清除CE
        private void button_ce_Click(object sender, EventArgs e)
        {
            textBox1.Text = "";
        }

        //求倒数
        private void button12_Click(object sender, EventArgs e)
        {
            double t=0;
            try
            {
                t = Convert.ToDouble(textBox1.Text);
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
            if(t != 0)
            {
                t = 1 / t;
                textBox1.Text = t.ToString();
            }

        }

        //平方运算
        private void button_pingfang_Click(object sender, EventArgs e)
        {
            double t = 0;
            try
            {
                t = Convert.ToDouble(textBox1.Text);
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
            t = t * t;
            textBox1.Text = t.ToString();
        }

        //开根运算
        private void button8_Click(object sender, EventArgs e)
        {
            double t = 0;
            try
            {
                t = Convert.ToDouble(textBox1.Text);
            }
            catch (Exception)
            {
                MessageBox.Show("先输入数字才能进行此运算！", "错误", MessageBoxButtons.OK);
            }
            t = Math.Sqrt(t);
            textBox1.Text = t.ToString();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}

另外附上一个 中缀式 转 后缀式 的用栈解决的 代码（数据结构实验写的

#include <iostream>
#include <stack>
#include <string.h>
#include <string>
#include <cstdio>
using namespace std;

int sum = 0; char p[10000];

int isp(char c)
{
    if(c == '#') return 0;
    if(c == '(') return 1;
    if(c == ')') return 6;
    if(c == '*'||c == '/'|| c == '%') return 5;
    if(c == '+' || c == '-') return 3;
}//栈内

int icp(char c)
{
    if(c == '#') return 0;
    if(c == '(') return 6;
    if(c == ')') return 1;
    if(c == '*'||c == '/'|| c == '%') return 4;
    if(c == '+' || c == '-') return 2;
}//栈外


void zhuan(char *c )
{

    stack<char> s;
    char ch ='#',ch1,op;
    int i =0;
    s.push('#');
    //ch = c[i];
    while (!s.empty() && c[i] != '#')
    {
        if('0'<=c[i] && c[i] <='9')
        {
            //cout << c[i]<<endl;
            p[sum++]=c[i];
            i++;
            while('0'<=c[i] && c[i] <='9'){
                p[sum++]=c[i];
                i++;
            }
            p[sum++]=' ';
        }
        else{
            op=s.top();
            if(isp(op) < icp(c[i]))
            {
                s.push(c[i]);i++;
            }
            else if(isp(op) > icp(c[i])){
                s.pop();//cout << op;
                p[sum++]=op;
                p[sum++]=' ';
            }
            else{
                s.pop();
                if(op=='(') i++;
            }
        }
    }
    while (s.top() != '#')
    {
        if(s.top()=='('||s.top()==')')
           s.pop();
        p[sum++]=s.top();
        p[sum++]=' ';
        s.pop();
    }
    p[sum++] = '';

}

int deng(char *s)
{
   stack<int>S;
    int a,b;
    int i =0;
    while (s[i])
    {
           if(s[i]=='+')
        {
            a = S.top();S.pop();
            b = S.top();S.pop();
            S.push(a+b);i++;
            //cout<< a+b<<endl;
        } else if(s[i]=='-')
        {
            a = S.top();S.pop();
            b = S.top();S.pop();
            S.push(b-a);i++;
            //cout<< b-a<<endl;
        } else if(s[i]=='*')
        {
            a = S.top();S.pop();
            b = S.top();S.pop();
            S.push(b*a);i++;
            //cout<< b*a<<endl;
        } else if(s[i]=='/')
        {
            a = S.top();S.pop();
            b = S.top();S.pop();
            S.push(b/a);i++;
            //cout<< b/a<<endl;
        } else if(s[i]=='%')
        {
            a = S.top();S.pop();
            b = S.top();S.pop();
            S.push(b%a);
            i++;//cout<< b%a<<endl;
        }
        else {
            if(s[i]==' ')
                i++;
            else {
                int a = s[i]-'0';
                i++;
                while('0'<=s[i] && s[i] <='9')
                {
                a=a*10+s[i]-'0';
                i++;
                }
                //cout <<"a ==" <<a<<endl;
                S.push(a);
            }
        }
        //cout <<"i=="<< i<<endl;
    }
    cout << S.top()<<endl;
}

int main ()
{
    char c[1000];
    while (cin >> c){
        sum = 0;
        zhuan(c);
        //cout << p <<endl;
        deng(p);
        //cout << t<<endl;
    }

    return 0;
}