C# - WinForm 계산기 만들기1

//C# 윈도우 폼 계산기 만들기

        private void button1_Click(object sender, EventArgs e)
        {
            int a = int.Parse(tbxData1.Text);
            int b = int.Parse(tbxData2.Text);

            rbx1.Text = (a + b).ToString()   

   }

 

// 숫자 입력한 뒤 버튼을 누르면 더한 결과가 나온다.

 

 

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 WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        int question_a = 0, question_b = 0;
        public Form1()
        {
            InitializeComponent();
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
 
            //int a = int.Parse(tbxData1.Text);
            //int b = int.Parse(tbxData2.Text);
 
            //rbx1.Text = (a + b).ToString();
 
            int a = question_a;
            int b = question_b;
            rbx1.Text =(a+b).ToString();
 
        }
 
        private void textBox1_TextChanged(object sender, EventArgs e)
        {
           
           
        }
 
        private void textBox1_TextChanged_1(object sender, EventArgs e)
        {
 
        }
 
        private void button2_Click(object sender, EventArgs e)
        {
            question.Text = "+";
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
 
        }
 
        private void rbx1_TextChanged(object sender, EventArgs e)
        {
 
        }
 
        private void num1_Click(object sender, EventArgs e)
        {
            question.Text += 1.ToString();
           
        }
 
        private void minus_Click(object sender, EventArgs e)
        {
            question.Text = "-";
        }
 
        private void clear_Click(object sender, EventArgs e)
        {
            question.Clear();
        }
 
        private void mul_Click(object sender, EventArgs e)
        {
            question.Text = "*";
        }
 
        private void div_Click(object sender, EventArgs e)
        {
            question.Text = "/";
        }
 
        private void del_Click(object sender, EventArgs e)
        {
 
        }
 
        private void num3_Click(object sender, EventArgs e)
        {
            question.Text += 3.ToString();
        }
 
        private void num4_Click(object sender, EventArgs e)
        {
            question.Text += 4.ToString();
        }
 
        private void num5_Click(object sender, EventArgs e)
        {
            question.Text += 5.ToString();
        }
 
        private void num6_Click(object sender, EventArgs e)
        {
            question.Text += 6.ToString();
        }
 
        private void num7_Click(object sender, EventArgs e)
        {
            question.Text += 7.ToString();
        }
 
        private void num8_Click(object sender, EventArgs e)
        {
            question.Text += 8.ToString();
        }
 
        private void num9_Click(object sender, EventArgs e)
        {
            question.Text += 9.ToString();
        }
 
        private void num0_Click(object sender, EventArgs e)
        {
            question.Text += 0.ToString();
        }
 
        private void num2_Click(object sender, EventArgs e)
        {
            question.Text += 2.ToString();
 
        }
    }
}