form1.cs

Visual C#2005程序设计教程

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

namespace WinApp4_15比较数值大小
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int a, b, c;
            a = int.Parse(txtA.Text);
            b = int.Parse(txtB.Text);
            c = int.Parse(txtC.Text);
            if (a <= b && a <= c)
                lblRseult.Text = "较小的值为：" + a;
            else if(b<=a&&b<=c)
                lblRseult.Text = "较小的值为：" + b;
            else 
                lblRseult.Text = "较小的值为：" + c;
        }
    }
}