udp通信 入门级示例源码

【实例截图】

【核心代码】

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));
        }
    }
}