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 WindowsFormsApplication7
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int sum = 0;
if(checkBox1.Checked==true)
{
sum += 100;
}
if (checkBox2.Checked == true)
{
sum += 200;
}
textBox1.Text = sum.ToString();
}
}
}
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