c# 계산기 코드

https://github.com/zakigaebal/c_calculator

using System;
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 WindowsFormsApp5
{
    public partial class Form1 : Form
    {

        Boolean bFlag = true;
        Boolean bclear = false;
        int icompute = 0;
        int iop = -1;


        public Form1()
        {
            InitializeComponent();
        }






        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void tableLayoutPanel1_Paint(object sender, PaintEventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "1";
                bclear = false;
            }
            else
            {
                textBox1.Text += "1";
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "2";
                bclear = false;
            }
            else
            {
                textBox1.Text += "2";
            }


        }

        private void buttonmi_Click(object sender, EventArgs e)
        {
            switch (iop)
            {
                case -1:
                    icompute = Convert.ToInt32(textBox1.Text);
                    break;
                case 0:
                    icompute += Convert.ToInt32(textBox1.Text);
                    break;
                case 1:
                    icompute -= Convert.ToInt32(textBox1.Text);
                    break;
                case 2:
                    icompute *= Convert.ToInt32(textBox1.Text);
                    break;
                case 3:
                    icompute /= Convert.ToInt32(textBox1.Text);
                    break;
            }
            iop = 1;
            bclear = true;
        }

        private void buttonplus_Click(object sender, EventArgs e)
        {
            switch (iop)
            {
                case -1:
                    icompute = Convert.ToInt32(textBox1.Text);
                    break;
                case 0:
                    icompute += Convert.ToInt32(textBox1.Text);
                    break;
                case 1:
                    icompute -= Convert.ToInt32(textBox1.Text);
                    break;
                case 2:
                    icompute *= Convert.ToInt32(textBox1.Text);
                    break;
                case 3:
                    icompute /= Convert.ToInt32(textBox1.Text);
                    break;
            }
            iop = 0;
            bclear = true;
        }

        private void buttoneq_Click(object sender, EventArgs e)
        {
            switch (iop)
            {
                case -1:
                    icompute = Convert.ToInt32(textBox1.Text);
                    break;
                case 0:
                    icompute += Convert.ToInt32(textBox1.Text);
                    break;
                case 1:
                    icompute -= Convert.ToInt32(textBox1.Text);
                    break;
                case 2:
                    icompute *= Convert.ToInt32(textBox1.Text);
                    break;
                case 3:
                    icompute /= Convert.ToInt32(textBox1.Text);
                    break;
            }
            iop = -1;
            textBox1.Text = Convert.ToString(icompute);
            icompute = 0;
            bclear = true;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "3";
                bclear = false;
            }
            else
            {
                textBox1.Text += "3";
            }


        }

        private void button4_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "4";
                bclear = false;
            }
            else
            {
                textBox1.Text += "4";
            }


        }

        private void button5_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "5";
                bclear = false;
            }
            else
            {
                textBox1.Text += "5";
            }


        }

        private void button6_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "6";
                bclear = false;
            }
            else
            {
                textBox1.Text += "6";
            }
        }

        private void button7_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "7";
                bclear = false;
            }
            else
            {
                textBox1.Text += "7";
            }


        }

        private void button8_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "8";
                bclear = false;
            }
            else
            {
                textBox1.Text += "8";
            }


        }

        private void button9_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {
                textBox1.Text = "9";
                bclear = false;
            }
            else
            {
                textBox1.Text += "9";
            }
        }

        private void button0_Click(object sender, EventArgs e)
        {
            if (bclear == true)
            {

            }
            else
            {
                textBox1.Text += "0";
            }


        }

        private void button15_Click(object sender, EventArgs e)
        {
            if (textBox1.Text.Length > 0)
            {
                textBox1.Text = textBox1.Text.Substring(0, textBox1.Text.Length - 1);
            }


        }

        private void button13_Click(object sender, EventArgs e)
        {
            icompute = 0;
            iop = -1;
            bclear = true;
            textBox1.Text = "";


        }

        private void buttonMultify_Click(object sender, EventArgs e)
        {
            switch (iop)
            {
                case -1:
                    icompute = Convert.ToInt32(textBox1.Text);
                    break;
                case 0:
                    icompute += Convert.ToInt32(textBox1.Text);
                    break;
                case 1:
                    icompute -= Convert.ToInt32(textBox1.Text);
                    break;
                case 2:
                    icompute *= Convert.ToInt32(textBox1.Text);
                    break;
                case 3:
                    icompute /= Convert.ToInt32(textBox1.Text);
                    break;
            }
            iop = 2;
            bclear = true;
        }

        private void buttonDivide_Click(object sender, EventArgs e)
        {
            switch (iop)
            {
                case -1:
                    icompute = Convert.ToInt32(textBox1.Text);
                    break;
                case 0:
                    icompute += Convert.ToInt32(textBox1.Text);
                    break;
                case 1:
                    icompute -= Convert.ToInt32(textBox1.Text);
                    break;
                case 2:
                    icompute *= Convert.ToInt32(textBox1.Text);
                    break;
                case 3:
                    icompute /= Convert.ToInt32(textBox1.Text);
                    break;
            }
            iop = 3;
            bclear = true;
        }
    }
}

 

 

결과

- 정말 마이크로소프트 계산기는 잘만든것같다는게 느껴짐