C# 계산기 내 나름 최종본 (코드포함)

Calc.exe

0.02MB

내 나름 최종본이다.

 

그리고 그냥 전부 포함하겠다.

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 Calc
{
    public partial class Calc : Form
    {
        
        public Calc()
        {
            InitializeComponent();
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void Calc_Click(object sender, EventArgs e)
        {


        }
        int number1 = 0;
        int number2 = 0;
        private void sum_numbers_Click(object sender, EventArgs e) //+
        {
            if (int.TryParse(input2.Text, out number2) == false)
                {

                MessageBox.Show("숫자를 넣어주세요.");
                input2.Focus();
                return;
                //이 이벤트 탈출
                //int형이면 return0;

            }
            if (String.IsNullOrWhiteSpace(input2.Text))
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input2.Focus();
                return;
            }
            number1 = Convert.ToInt32(input1.Text);
            number2 = Convert.ToInt32(input2.Text);
            //Convert => system에 포함. 맨위에 using System이 있기에 사용 가능함.
            //int는 그냥 32임 사이즈가.
            //Convert 사용법 => Convert.To바꾸고싶은자료형(바꿀대상)

            int sum = number1 + number2;
            resultbox.Text = Convert.ToString(sum);
        }

        private void minus_numbers_Click(object sender, EventArgs e)// -
        {
            
            if (int.TryParse(input1.Text, out number1) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input1.Focus();
                return;

            }
            if (int.TryParse(input2.Text, out number2)==false )
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input2.Focus();
                return;
            }
            number1 = Convert.ToInt32(input1.Text);
            number2 = Convert.ToInt32(input2.Text);
            
            int minus = number1 - number2;
            resultbox.Text = Convert.ToString(minus);
        }

        private void x_numbers_Click(object sender, EventArgs e) // *
        {
            
            if (int.TryParse(input1.Text, out number1) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input1.Focus();
                return;

            }
            if (int.TryParse(input2.Text, out number2) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input2.Focus();
                return;
            }
            number1 = Convert.ToInt32(input1.Text);
            number2 = Convert.ToInt32(input2.Text);
            
            int multi = number1 * number2;
            resultbox.Text = Convert.ToString(multi);
        }

        private void div_numbers_Click(object sender, EventArgs e)// /
        {
            
            if (int.TryParse(input1.Text, out number1) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input1.Focus();
                return;

            }
            if (int.TryParse(input2.Text, out number2) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input2.Focus();
                return;
            }
            number1 = Convert.ToInt32(input1.Text);
            number2 = Convert.ToInt32(input2.Text);
            
            int div = number1 / number2;
            resultbox.Text = Convert.ToString(div);
        }

        private void Calc_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            
            if (int.TryParse(input1.Text, out number1) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input1.Focus();
                return;

            }
            if (int.TryParse(input2.Text, out number2) == false)
            {
                MessageBox.Show("숫자를 넣어주세요.");
                input2.Focus();
                return;
            }
            number1 = Convert.ToInt32(input1.Text);
            number2 = Convert.ToInt32(input2.Text);

            int div = number1 % number2;
            resultbox.Text = Convert.ToString(div);
        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void no1_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "1";
        }

        private void splitter1_SplitterMoved(object sender, SplitterEventArgs e)
        {
                    }

        private void no2_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "2";
        }

        private void no3_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "3";
        }

        private void no4_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "4";
        }

        private void no5_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "5";
        }

        private void no6_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "6";
        }

        private void no7_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "7";
        }

        private void no8_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "8";
        }

        private void no9_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "9";
        }

        private void button2_Click(object sender, EventArgs e)
        {
            input1.Text = input1.Text + "0";
        }

        private void no11_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "1";
        }

        private void no22_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "2";
        }

        private void no33_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "3";
        }

        private void no44_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "4";
        }

        private void no55_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "5";
        }

        private void no66_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "6";
        }

        private void no77_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "7";
        }

        private void no88_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "8";
        }

        private void no99_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "9";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            input2.Text = input2.Text + "0";
        }

        private void checkBox1_CheckedChanged(object sender, EventArgs e)
        {
            int set_neg = 0;
            if(set_neg != 0)
            {
                set_neg = 1;
            }
            else
            {
                set_neg = 0;
            }
        }
    }
  
}

 

제일 마지막에 있는 checkBox1_이거는 미완이니까 그냥 무시해도 될 것 같다.