visual c#.NET程序设计课后习题部分答案.docx

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1、visual c#.NET程序设计课后习题部分答案二、3(1).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 WindowsFormsApplication1public partial class Form1 : Form public Form1() Initializ

2、eComponent(); private void button1_Click(object sender, EventArgs e) label1.Text = 该圆的面积为： + 3. * float.Parse(textBox1.Text) * float.Parse(textBox1.Text) + n + n + 该圆的周长为： + 2 * 3. * float.Parse(textBox1.Text); private void textBox1_TextChanged(object sender, EventArgs e) private void Form1_Load(obj

3、ect sender, EventArgs e) private void label1_Click(object sender, EventArgs e) 二、3（2）using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ConsoleApplication2class Program enum MYENa=1001,b,c=207,d,e,f,g; static void Main(string args) int ni = (int)MYEN.e; Conso

4、le.WriteLine(s); Console.ReadLine(); 三、3.3(2)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 WindowsFormsApplication1public partial class Form1 : Form public Form

5、1() InitializeComponent(); private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) System.Diagnostics.Process.Start(); private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) System.Diagnostics.Process.Start( ); private void linkLabel3_LinkClic

6、ked(object sender, LinkLabelLinkClickedEventArgs e) System.Diagnostics.Process.Start(http:/www.QQ.com); private void linkLabel4_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) System.Diagnostics.Process.Start(); Private void linkLabel5_LinkClicked(objectsender,LinkLabelLinkClickedEventArgs e) System.Diagnostics.Process.Start();