实验名称：实验三 Windows 应用程序开发
一、 实验目的
1. 掌握窗口控件的使用方法；
2. 掌握 Windows 的编程基础。
二、 实验要求
根据要求，编写 C#程序，并将程序代码和运行结果写入实验报告。
三、 实验内容
1.编写一个计算器，练习在窗体上添加控件、调整控件的布局，设置或修改控件属性，编写事件处理程序的方法。
(1)新建 windows 应用程序。在窗体 Form 上拖放一个 TextBox 控件、十六个 Button 控 件，整个窗体布局如下图所示。
(2)打开代码窗口，添加如下全局变量：
double a = 0;
double b = 0;
bool c = false;
string d;
(3)双击”1”按钮，添加如下事件处理程序：
private void button1_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "1";
}
(4)双击”2”按钮，添加如下事件处理程序：
private void button2_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox2.Text = "";
c = false;
}
textBox1.Text += "2";
}
(5)双击”3”按钮，添加如下事件处理程序：
private void button3_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox3.Text = "";
c = false;
}
textBox1.Text += "3";
}
(6)双击”4”按钮，添加如下事件处理程序：
private void button4_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "4";
}
(7)双击”5”按钮，添加如下事件处理程序：
private void button5_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "5";
}
(8)双击”6”按钮，添加如下事件处理程序：
private void button6_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "6";
}
(8)双击”7”按钮，添加如下事件处理程序：
private void button7_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "7";
}
(10)双击”8”按钮，添加如下事件处理程序：
private void button8_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "8";
}
(11)双击”9”按钮，添加如下事件处理程序：
private void button9_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "9";
}
(12)双击”0”按钮，添加如下事件处理程序：
private void button12_Click(object sender, EventArgs e)
{
if (c == true)
{
textBox1.Text = "";
c = false;
}
textBox1.Text += "0";
if (d == "/")
{
textBox1.Clear();
MessageBox.Show("除数不能为零", "错误提示", MessageBoxButtons.OK,
MessageBoxIcon.Warning);
}
}
(13)双击”+”按钮，添加如下事件处理程序：
private void button13_Click(object sender, EventArgs e)
{
c = true;
b = double.Parse(textBox1.Text);
d = "+";
}
(14)双击”-”按钮，添加如下事件处理程序：
private void button16_Click(object sender, EventArgs e)
{
c = true;
b = double.Parse(textBox1.Text);
d = "-";
}
(15)双击”*”按钮，添加如下事件处理程序：
private void button15_Click(object sender, EventArgs e)
{
c = true;
b = double.Parse(textBox1.Text);
d = "*";
}
(16)双击”/”按钮，添加如下事件处理程序：
private void button14_Click(object sender, EventArgs e)
{
c = true;
b = double.Parse(textBox1.Text);
d = "/";
}
(17)双击”=”按钮，添加如下事件处理程序：
private void button17_Click(object sender, EventArgs e)
{
switch (d)
{
case "+": a = b + double.Parse(textBox1.Text); break;
case "-": a = b - double.Parse(textBox1.Text); break;
case "*": a = b * double.Parse(textBox1.Text); break;
case "/": a = b / double.Parse(textBox1.Text); break;
}
textBox1.Text = a + "";
c = true;
}
(18)双击”c”按钮，添加如下事件处理程序：
private void button18_Click(object sender, EventArgs e)
{
textBox1.Text = "";
}
(19)单击启动调试工具，运行计算器。
单击9 单击* 单击2
单击 =
(20)在计算器中，增加四个功能键：x2，sqrt，log, ln 四个键，分别计算求平方，开方，log，ln 值，将增加的代码写入实验报告。
1）X2功能实现：
private void button16_Click(object sender, EventArgs e)
{
a = double.Parse(textBox1.Text) * double.Parse(textBox1.Text);
textBox1.Text = a + "";
c = true;
}
单击6单击X2
2）sqrt功能实现：
private void button15_Click(object sender, EventArgs e)
{
a = Math.Pow(double.Parse(textBox1.Text), 1 / 2);
textBox1.Text = a + "";
c = true;
}
单击9 单击sqrt
3）log功能实现：
private void button4_Click(object sender, EventArgs e)
{
a = Math.Log(double.Parse(textBox1.Text));
textBox1.Text = a + "";
c = true;
}
依此单击625单击log 单击4
计算结果为4
4）ln功能实现：
private void button4_Click(object sender, EventArgs e)
{
a = Math.Log(double.Parse(textBox1.Text));
textBox1.Text = a + "";
c = true;
}
输入55 计算结果约为4
2.自己设计并编写一个 Windows 应用程序，要求用到TextBox、GroupBox、RadioButton、CheckBox、ComboBox、ListBox 控件、Timer 控件。将程序功能、界面布局和运行结果的截图与事件代码写在实验报告中
1) 程序功能：
将选择或录入的个人信息保存在程序中，并在录入完成并按下完成按钮后，以提示框的形式回馈给用户。
2) 界面布局：
实现界面
3) 运行结果（仅为示例）：
4) 事件代码（以下为全部代码，内含各种事件代码）：
i.Form1.cs文件代码：
using System;
using System.Collections;
using System.Threading;
using System.Windows.Forms;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
using static System.Windows.Forms.VisualStyles.VisualStyleElement.Button;
using Timer = System.Threading.Timer;
namespace WinFormsApp1
{
public partial class Form1 : Form
{
public string A = "";
int Ti = 0;
public string name;
string sentence = "";
string sex = "";
string[] hobbies = {"","","",""}; //唱、跳、rap、篮球
bool flag1=false; //判断“唱”是否被选中
bool flag2=false; //判断“跳”是否被选中
bool flag3=false; //判断“rap”是否被选中
bool flag4=false; //判断“篮球”是否被选中
string education = "";
public Form1()
{
InitializeComponent();
}
private void timer1_Tick(object sender, EventArgs e)
{
Ti++;
A = "第"+Ti.ToString()+"次显示";
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
name = textBox1.Text;
}
private void label1_Click(object sender, EventArgs e)
{
label1.Text = A;
A = "你的姓名是：" + name + "\n" + "你的座右铭是：" + sentence + "\n" + "你的性别是：" + sex + "\n" + "你的爱好有：" + hobbies[0] + hobbies[1] + hobbies[2] + hobbies[3] +"\n"+"你的最高学历是："+education+"\n";
MessageBox.Show(A);
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
education = comboBox1.Text;
}
private void label3_Click(object sender, EventArgs e)
{
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
if (flag4 == false)
{
flag4 = true;
hobbies[3] = "篮球";
}
else
{
flag4 = false;
hobbies[3] = "";
}
}
private void groupBox1_Enter(object sender, EventArgs e)
{
}
private void 此处撰写_SelectedIndexChanged(object sender, EventArgs e)
{
}
private void radioButton2_CheckedChanged(object sender, EventArgs e)
{
if (radioButton2.Checked)
{
sex = "女";
}
}
private void radioButton1_CheckedChanged(object sender, EventArgs e)
{
if (radioButton1.Checked)
{
sex = "男";
}
}
private void checkBox3_CheckedChanged(object sender, EventArgs e)
{
if (flag2 == false)
{
flag2 = true;
hobbies[1] = "跳";
}
else
{
flag2 = false;
hobbies[1] = "";
}
}
private void checkBox2_CheckedChanged(object sender, EventArgs e)
{
if (flag1 == false)
{
flag1 = true;
hobbies[0] = "唱";
}
else
{
flag1 = false;
hobbies[0] = "";
}
}
private void checkBox4_CheckedChanged(object sender, EventArgs e)
{
if (flag3 == false)
{
flag3 = true;
hobbies[2] = "rap";
}
else
{
flag3 = false;
hobbies[2] = "";
}
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
for (int i = 0; i < listBox1.Items.Count; i++)
{
//行被选中时
if (listBox1.SelectedItems.Contains(listBox1.Items[i]))
{
if (listBox1.Items[i].ToString() == null)
{
sentence = "未选择";
}
else
{
sentence = listBox1.Items[i].ToString();
}
}
}
}
private void label6_Click(object sender, EventArgs e)
{
}
}
}
ii. Program.cs文件代码
namespace WinFormsApp1
{
internal static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
ApplicationConfiguration.Initialize();
Application.Run(new Form1());
}
}
}
iii.设计界面
