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安全的网站建,房价在2022年大跌,域名在线查询,移动网站建设条件目录 一、创建Web页面浏览器 1.示例源码 2.生成效果 二、局域网聊天程序 1.类 2.服务器端 3.客户端 一、创建Web页面浏览器 TextBox 控件用来输入要浏览的网页地址，Button控件用来执行浏览网页操作， WebBrowser控件用来显示要浏览的网页。这个控…

目录

一、创建Web页面浏览器

1.示例源码

2.生成效果

二、局域网聊天程序

1.类

2.服务器端

3.客户端

一、创建Web页面浏览器

        TextBox 控件用来输入要浏览的网页地址，Button控件用来执行浏览网页操作， WebBrowser控件用来显示要浏览的网页。这个控件目前只能在.NET Framework 4.8下使用，.NET8.0不支持了。
        在使用WebBrowser 类时会占用大量资源，当使用完后必须调用 Dispose() 方法，以确保及时释放所有资源。

1.示例源码

// WebBrowser
// 这个控件目前只能在.NET Framework 4.8下使用，.NET8.0不支持了
// 在“网址”文本框中输入要浏览的网页地址，
// 按Enter键或单击“转到”按钮，即可浏览指定的网页。
using System;
using System.Windows.Forms;namespace _WebBrowser
{public partial class Form1 : Form{public Form1(){InitializeComponent();}private void WebBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e){}/// <summary>/// 创建一个Uri类型的变量，用来存储要浏览的网页地址/// 在WebBrowser控件中显示指定的网页/// </summary>private void Button1_Click(object sender, EventArgs e){Uri address = new Uri(textBox1.Text);webBrowser1.Url = address;}private void Form1_Load(object sender, EventArgs e){label1.Text = "网址：";button1.Text = "确定";Text = "WebBrowser";}private void TextBox1_KeyPress(object sender, KeyPressEventArgs e){if (e.KeyChar == 13){if (textBox1.Text != ""){Button1_Click(sender, e);   //判断是否按下Enter键}}}}
}

// Form1.Designer.cs
namespace _WebBrowser
{partial class Form1{/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// 清理所有正在使用的资源。/// </summary>/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要修改/// 使用代码编辑器修改此方法的内容。/// </summary>private void InitializeComponent(){this.label1 = new System.Windows.Forms.Label();this.textBox1 = new System.Windows.Forms.TextBox();this.button1 = new System.Windows.Forms.Button();this.panel1 = new System.Windows.Forms.Panel();this.webBrowser1 = new System.Windows.Forms.WebBrowser();this.panel1.SuspendLayout();this.SuspendLayout();// // label1// this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(10, 13);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(41, 12);this.label1.TabIndex = 0;this.label1.Text = "label1";// // textBox1// this.textBox1.Location = new System.Drawing.Point(63, 8);this.textBox1.Name = "textBox1";this.textBox1.Size = new System.Drawing.Size(278, 21);this.textBox1.TabIndex = 1;this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBox1_KeyPress);// // button1// this.button1.Location = new System.Drawing.Point(347, 8);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(75, 23);this.button1.TabIndex = 2;this.button1.Text = "button1";this.button1.UseVisualStyleBackColor = true;this.button1.Click += new System.EventHandler(this.Button1_Click);// // panel1// this.panel1.Controls.Add(this.webBrowser1);this.panel1.Location = new System.Drawing.Point(12, 35);this.panel1.Name = "panel1";this.panel1.Size = new System.Drawing.Size(410, 214);this.panel1.TabIndex = 3;// // webBrowser1// this.webBrowser1.Dock = System.Windows.Forms.DockStyle.Fill;this.webBrowser1.Location = new System.Drawing.Point(0, 0);this.webBrowser1.MinimumSize = new System.Drawing.Size(20, 20);this.webBrowser1.Name = "webBrowser1";this.webBrowser1.Size = new System.Drawing.Size(410, 214);this.webBrowser1.TabIndex = 4;// // Form1// this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(434, 261);this.Controls.Add(this.panel1);this.Controls.Add(this.button1);this.Controls.Add(this.textBox1);this.Controls.Add(this.label1);this.Name = "Form1";this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;this.Text = "Form1";this.Load += new System.EventHandler(this.Form1_Load);this.panel1.ResumeLayout(false);this.ResumeLayout(false);this.PerformLayout();}#endregionprivate System.Windows.Forms.Label label1;private System.Windows.Forms.TextBox textBox1;private System.Windows.Forms.Button button1;private System.Windows.Forms.Panel panel1;private System.Windows.Forms.WebBrowser webBrowser1;}
}

2.生成效果

二、局域网聊天程序

        Windows窗体应用，在解决方案下添加一个类和两个Windows窗体应用项目，其中，类文件用来封装接收信息和发送信息的方法，两个Windows窗体应用项目分别用来作为聊天程序的服务器端和客户端。
        框架：.NET Framework 4.8，无论什么框架可能会遇到MessageBox.Show 方法不被支持，请按作者提供的方法去解决。
       C#中的警告CS0120、CS0176、CS0183、CS0618、CS0649、CS8600、CS8601、CS8602、CS8604、CS8625、CS8618、CS0103及处理-CSDN博客  https://blog.csdn.net/wenchm/article/details/134606735?csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22134606735%22%2C%22source%22%3A%22wenchm%22%7Dicon-default.png?t=N7T8http://C#%E4%B8%AD%E7%9A%84%E8%AD%A6%E5%91%8ACS0120%E3%80%81CS0176%E3%80%81CS0183%E3%80%81CS0618%E3%80%81CS0649%E3%80%81CS8600%E3%80%81CS8601%E3%80%81CS8602%E3%80%81CS8604%E3%80%81CS8625%E3%80%81CS8618%E3%80%81CS0103%E5%8F%8A%E5%A4%84%E7%90%86-CSDN%E5%8D%9A%E5%AE%A2%20%20https://blog.csdn.net/wenchm/article/details/134606735?csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22134606735%22%2C%22source%22%3A%22wenchm%22%7D
        .NET 8.0框架下我也重建了该项目，遭遇到的MessageBox.Show（）CS0103红色警告。百般折腾，没有解决得了同样的问题。网友感兴趣的话可以试试，如果解决了，把经验分享一下。

1.类

// 聊天室，解决方案下建立的公共类库
using System.Net.Sockets;
using System.Net;
using System.Text;
using System;
using System.Windows;
using System.Windows.Forms;namespace StartListener
{public class Class1{public const int port = 11000;public void StartListener(){UdpClient udpclient = new UdpClient(port);                  //设置端口号IPEndPoint ipendpoint = new IPEndPoint(IPAddress.Any, port);//将网络端点表示为IP地址和端口号try{while (true){byte[] bytes = udpclient.Receive(ref ipendpoint);string strlP = "信息来自" + ipendpoint.Address.ToString();string strlnfo = Encoding.GetEncoding("gb2312").GetString(bytes, 0, bytes.Length);MessageBox.Show(strlnfo, strlP);}}catch (Exception e){MessageBox.Show(e.ToString());}finally{udpclient.Close();}}public static string Send(string strServer, string strContent){Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);IPAddress ipaddress = IPAddress.Parse(strServer);   //将输入的字符串转换为IP地址  byte[] btContent = Encoding.GetEncoding("gb2312").GetBytes(strContent); //将发送的内容存储到byte数组中IPEndPoint ipendpoint = new IPEndPoint(ipaddress, 11000);socket.SendTo(btContent, ipendpoint);socket.Close();return "发送成功";}}
}

2.服务器端

// 服务器端，要增加对公共类的引用
using StartListener;
using System;
using System.Windows.Forms;namespace ChatServer
{public partial class Form1 : Form{readonly Class1 class1 = new Class1();public Form1(){InitializeComponent();}/// <summary>/// 隐藏当前窗体//调用公共类中的方法接收信息/// </summary>private void Form1_Load(object sender, EventArgs e){Hide();class1.StartListener();}}
}

3.客户端

// 客户端端，要增加对公共类的引用
using StartListener;
using System.Diagnostics;
using System;
using System.Windows.Forms;namespace ChatClient
{public partial class Form1 : Form{       Process myProcess;public Form1(){InitializeComponent();}/// <summary>///  开启服务器///  要把服务器端生成的.exe文件复制到客户端当前文件夹下///  并且文件名要修改为实际生成的文件名/// </summary>private void Form1_Load(object sender, EventArgs e){myProcess = Process.Start("ChatServer.exe");   }private void Button1_Click(object sender, EventArgs e){string send = Class1.Send(textBox1.Text, textBox2.Text);MessageBox.Show(send);                      //发送信息//textBox2.Text = string.Empty;textBox2.Focus();}private void TextBox1_KeyPress(object sender, KeyPressEventArgs e){if (e.KeyChar == 13)textBox2.Focus();}private void TextBox2_KeyPress(object sender, KeyPressEventArgs e){if (e.KeyChar == 13)button1.Focus();}private void Form1_FormClosing(object sender, FormClosingEventArgs e){myProcess.Kill();}}
}


// Form1.Designer.cs
namespace ChatClient
{partial class Form1{/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.IContainer components = null;/// <summary>/// 清理所有正在使用的资源。/// </summary>/// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>protected override void Dispose(bool disposing){if (disposing && (components != null)){components.Dispose();}base.Dispose(disposing);}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要修改/// 使用代码编辑器修改此方法的内容。/// </summary>private void InitializeComponent(){this.button1 = new System.Windows.Forms.Button();this.label1 = new System.Windows.Forms.Label();this.label2 = new System.Windows.Forms.Label();this.textBox1 = new System.Windows.Forms.TextBox();this.textBox2 = new System.Windows.Forms.TextBox();this.SuspendLayout();// // button1// this.button1.Location = new System.Drawing.Point(297, 12);this.button1.Name = "button1";this.button1.Size = new System.Drawing.Size(75, 23);this.button1.TabIndex = 0;this.button1.Text = "button1";this.button1.UseVisualStyleBackColor = true;this.button1.Click += new System.EventHandler(this.Button1_Click);// // label1// this.label1.AutoSize = true;this.label1.Location = new System.Drawing.Point(12, 23);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(41, 12);this.label1.TabIndex = 1;this.label1.Text = "label1";// // label2// this.label2.AutoSize = true;this.label2.Location = new System.Drawing.Point(12, 55);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(41, 12);this.label2.TabIndex = 2;this.label2.Text = "label2";// // textBox1// this.textBox1.Location = new System.Drawing.Point(88, 14);this.textBox1.Name = "textBox1";this.textBox1.Size = new System.Drawing.Size(203, 21);this.textBox1.TabIndex = 3;this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBox1_KeyPress);// // textBox2// this.textBox2.Location = new System.Drawing.Point(88, 46);this.textBox2.Multiline = true;this.textBox2.Name = "textBox2";this.textBox2.Size = new System.Drawing.Size(284, 203);this.textBox2.TabIndex = 4;this.textBox2.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.TextBox2_KeyPress);// // Form1// this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;this.ClientSize = new System.Drawing.Size(384, 261);this.Controls.Add(this.textBox2);this.Controls.Add(this.textBox1);this.Controls.Add(this.label2);this.Controls.Add(this.label1);this.Controls.Add(this.button1);this.Name = "Form1";this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;this.Text = "Form1";this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);this.Load += new System.EventHandler(this.Form1_Load);this.ResumeLayout(false);this.PerformLayout();}#endregionprivate System.Windows.Forms.Button button1;private System.Windows.Forms.Label label1;private System.Windows.Forms.Label label2;private System.Windows.Forms.TextBox textBox1;private System.Windows.Forms.TextBox textBox2;}
}

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