UDP是一种面向非连接，不可靠的通讯协议，相对于TCP来说，虽然可靠性不及，但传输效率较高。所以在网络上仍有很大的用途。这几日需要了解下udp通讯的过程，上网发现这方面的资料还挺少。于是仔细的翻找了下msdn，基本上搞清楚了udp通讯的过程。做了一个测试的例子。希望对大家有帮助。

-UDP is a non-connection-oriented, reliable communication protocol, compared to TCP, Although less than reliability, high transmission efficiency. So the network is still great purposes. Need to understand the past few days under udp communication process, the Internet found that information It's small. So carefully looking for the next VARIANT basically clear the udp communication process. Done a test case. We want to help.