如何在特定端口上扫描一系列IP地址

Question

我试图弄清楚如何扫描IP地址范围内的特定TCP端口？到目前为止，这是我的代码：static void Main(string[] args){    IPAddress beginIP = IPAddress.Parse("192.168.1.1");    IPAddress EndIP = IPAddress.Parse("192.168.3.3");    int PortNumber = 80;    bool portStatu = scanPort(BeginIP,EndIP,PortNumber);}public bool scanPort(IPAddress beginIP,IPAddress endIP , int portNumber){     //What should i write...}