C#TCPClient应用-一个简单的消息发送和接收 TcpSend 窗口用于发送消息，另外写一个用于接收消息的应用程序，消息接受到以后，必须要关闭接收消息的窗口，才能在接收新的消息，不知道怎么能解决这个问题。 源代码： 发送消息的窗口代码 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Net; using System.Net.Sockets; using System.IO; namespaceTCPSocket { public partial class FrmTcpSend : Form { public FrmTcpSend() { InitializeComponent(); } private void buttonSendFile_Click(object sender, EventArgs e) { // TcpClienttcpClient = new TcpClient(textBoxHostName.Text, Int32.Parse(textBoxPort.Text)); TcpClienttcpClient = new TcpClient(); tcpClient.Connect(IPAddress.Parse(textBoxHostName.Text), Int32.Parse(textBoxPort.Text)); NetworkStream ns = tcpClient.GetStream(); FileStreamfs = File.Open("..\\..\\FrmTcpSend.cs", FileMode.Open); int data = fs.ReadByte(); while (data != -1) { ns.WriteByte((byte)data); data = fs.ReadByte(); } fs.Close(); ns.Close(); tcpClient.Close(); } private void buttonSendMessage_Click(object sender, EventArgs e) { TcpClienttcpClient = new TcpClient(); tcpClient.Connect(IPAddress.Parse(textBoxHostName.Text), Int32.Parse(textBoxPort.Text)); NetworkStream ns = tcpClient.GetStream(); if (ns.CanWrite) { Byte[] sendBytes = Encoding.UTF8.GetBytes(textBoxMessage.Text); ns.Write(sendBytes, 0, sendBytes.Length); } else { MessageBox.Show("不能写入数据流", "终止", MessageBoxButtons.OK, MessageBoxIcon.Stop); //Console.WriteLine("You cannot write data to this stream."); tcpClient.Close(); // Closing the tcpClient instance does not close the network stream. ns.Close(); return; } ns.Close(); tcpClient.Close(); } } } 接收消息的窗口代码 using System; using System.Collections.Generic; using System.ComponentModel;...
