获取局域网内计算机的列表

代码说明：

Visual C#得到局域网计算机列表，也就是获取局域网内的所有在线的主机名称列表，请确保您的电脑在网络中，要不然程序获取时候可能要假死，需要强制结束任务。-Visual C# to get a list of local area network computer, which is to get a list of all the online host names within the LAN, make sure your computer is on the network, or else the program may have to feign death to get it, you need to force the end of the task.