C语言实现基于Windows平台的Native API编程，打开句柄，获得网络接口信息、可用网络列表信息，根据标志位确定当前连接的网络，得到该网络的信息，关闭句柄，释放内存。-C language the Native API programming based on the Windows platform, open handle network interface information, and information available networks list, according