C # Get the ports and states that the system opens

Frombegintoend original C # get the system open ports and states

The cmd command line is actually called through C # programming, then the netstat command is called, and the output of the cmd command is transferred to the C # console program. You can also export the results to a file.

usingSystem; usingSystem.Collections.Generic; usingSystem.Linq; usingSystem.Text; usingSystem.Diagnostics; namespace_19 Get the system open port and status {classProgram {Static voidMain (string[] args) {Process P=NewProcess (); p.StartInfo.FileName="Cmd.exe";//setting up applications for startupP.startinfo.useshellexecute =false;//prohibit starting a process using the operating system shellP.startinfo.redirectstandardinput =true;//input from the application is read from the streamP.startinfo.redirectstandardoutput =true;//the output of the application is written to the streamP.startinfo.redirectstandarderror =true;//write error message to streamP.startinfo.createnowindow =true;//whether to start the process in a new windowP.start (); //p.standardinput.writeline (@ "Netstat-a-n>c:\port.txt");//writes a string to a text streamP.standardinput.writeline (@"netstat-a-N"); stringstr;  while(str = p.standardoutput.readline ())! =NULL) {Console.WriteLine (str);          } console.readkey (); }      }  }  

Using System;  

Using System.Collections.Generic;  

Using System.Linq;  

Using System.Text;  

Using System.Diagnostics;  

namespace _19 get the system open ports and status  

{ 

class Program

   { 

static void Main (string[] args)

       { 

Process P = new process ();  

p.StartInfo.FileName = "cmd.exe";// Set startup application

P.startinfo.useshellexecute = false;// prohibit the use of the operating system shell to start a process

P.startinfo.redirectstandardinput = input from the true;//application is read from the stream

P.startinfo.redirectstandardoutput = output of the true;//application is written to the stream

P.startinfo.redirectstandarderror = true;// writes error information to the stream

P.startinfo.createnowindow =true;// whether to start a process in a New window

P.start ();  

//p.standardinput.writeline (@ "Netstat-a-n>c:\port.txt");// writes a string to the text stream

P.standardinput.writeline (@ "netstat-a-n");  

string str;  

while ((str = p.standardoutput.readline ()) = null)

           { 

Console.WriteLine (str);  

           } 

Console.readkey ();  

       } 

   } 

} 

C # Get the ports and states that the system opens