word向程序发送命令时出现问题-C井怎样通过ip和端口向一台设备发送指令-乔山办公网

word向程序发送命令时出现问题-C井怎样通过ip和端口向一台设备发送指令

作者：乔山办公网日期：2020-02-15 15:10:05

返回目录：word文档

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
namespace Client
{
class Program
{
static void Main(string[] args)
{
try
{
int port = 2000;
string host = "127.0.0.1";
///创建终结点EndPoint
IPAddress ip = IPAddress.Parse(host);
//IPAddress ipp = new IPAddress("127.0.0.1");
IPEndPoint ipe = new IPEndPoint(ip, port);//把ip和端口转化为IPEndpoint实例
///创建socket并连接到服务器
Socket c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);//创建Socket
Console.WriteLine("Conneting…");
c.Connect(ipe);//连接到服务器
///向服务器发送信息
string sendStr = "hello!This is a socket test";
byte[] bs = Encoding.ASCII.GetBytes(sendStr);//把字符串编码为字节
Console.WriteLine("Send Message");
c.Send(bs, bs.Length, 0);//发送信息
///接受从服务器返回的信息
string recvStr = "";
byte[] recvBytes = new byte[1024];
int bytes;
bytes = c.Receive(recvBytes, recvBytes.Length, 0);//从服务器端接受返回信息
recvStr += Encoding.ASCII.GetString(recvBytes, 0, bytes);
Console.WriteLine("client get message:{0}", recvStr);//显示服务器返回信息
///一定记着用完socket后要关闭
c.Close();
}
catch (ArgumentNullException e)
{
Console.WriteLine("argumentNullException: {0}", e);
}
catch (SocketException e)
{
Console.WriteLine("SocketException:{0}", e);
}
Console.WriteLine("Press Enter to Exit");
}
}
}