windows to view the port number to kill off the program

If the program know the name lookup by name

For example micro-channel:

> tasklist | findstr "WeChat" // support fuzzy queries
WeChat.exe 15172 Console 1 101,996 K
WeChatWeb.exe 14900 Console 1 24,992 K
WeChatApp.exe 5368 Console 1 107,236 K

> taskkill / F / pid 15172
Success: it has terminated the process with PID 15172 of.

If you want to see which port is occupied by what procedures

For example, port 80 is occupied by unknown program

>netstat -ano | findstr "80"

  TCP    0.0.0.0:80             0.0.0.0:0              LISTENING       4

C:\Users\delverloper-001>tasklist | findstr "4"
chrome.exe                    3896 Console                    1     76,664 K

to kill off