udp通信 入门级示例源码

发送端：using System;using System.Collections.Generic;using System.Linq;using System.Text;using UDP;namespace UDP_Test{ class Program { static void Main(string[] args) { //发送端测试程序 udp Test = new udp(); if (Test.ini(50001, "127.0.0.2") == 1) { Test.SetAdd(50001, "127.0.0.1"); byte[] data; string welcome = "Hello World! "; data = Encoding.ASCII.GetBytes(welcome); Console.WriteLine("Sending..."); if (Test.send(data) == 1) Console.WriteLine("Sent successfully!"); else { Console.WriteLine("The Port is not open!"); } } else { Console.WriteLine("The Port has been occupied!"); } } }}

接收端：using System;using System.Collections.Generic;using System.Linq;using System.Text;using UDP;namespace UDP_Test{ class Program { static void Main(string[] args) { //接收端测试程序 udp Test = new udp(); Test.SetAdd(50001, "127.0.0.1"); Console.WriteLine("Waiting Connect..."); byte[] data; Test.receive(out data); Console.WriteLine("Message is:"); Console.WriteLine(Encoding.ASCII.GetString(data, 0, data.Length)); } }}