开发笔记:Button，CheckBox，Lable，RadioButton，ComboBox，TextBox六个简单控件的使用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace _6个简单控件_肯德基点餐
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
//主食索引默认为0
comboBox1.SelectedIndex = 0;
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
}
private void radioButton3_CheckedChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
//选取主食
string zs = comboBox1.SelectedItem.ToString();
//选取配菜
string pc="";
if (radioButton1.Checked)//选中的是薯条
pc = "薯条";
else if(radioButton2.Checked)//选中的是土豆泥
pc="土豆泥";
else//选中的是玉米棒
pc = "玉米棒";
//选取饮品
string yp = "";
if (checkBox1.Checked)//选中可乐
{
yp += checkBox1.Text;
if (checkBox2.Checked)//选中可乐，咖啡
{
yp =yp +"," + checkBox2.Text;
if (checkBox3.Checked)//选中可乐，咖啡，橙汁
{
yp =yp+ "," + checkBox3.Text;
}
}
if (checkBox3.Checked)//选中可乐，橙汁
{
yp = yp + "," + checkBox3.Text;
}
}
else if (checkBox2.Checked)//选中咖啡
{
yp += checkBox2.Text;
if (checkBox3.Checked)//选中咖啡，橙汁
{
yp =yp+ "," + checkBox3.Text;
}
}
else//只选中橙汁
{
yp += checkBox3.Text;
}
//获取地址
string dz = textBox1.Text;
//获取电话
string dh = textBox2.Text;
//弹出消息框
MessageBox.Show("您选取的主食是："+zs+"\\n配菜是："+pc+"\\n饮品是："+yp+"\\n配送地址："+dz+"\\n联系方式："+dh);
}
}
}