How can I check whether port 80 is occupied?

How can I check port 80 usage... start -- run -- cmd enter the command prompt and enter netstat-ano. Then you can see all connected PIDs and find the program corresponding to the PID in the task manager. If no PID exists in the task manager, you can select "View"-"Select column" in the task manager. when starting the application, we find that the ports required by the system are occupied by other programs, how to know who owns the port we need is a headache for many people. The following describes a very simple method, I hope it will be useful to everyone. If we need to determine who is occupying port 80 1, and the windows platform will execute: C in the Windows command line window: /> netstat-Aon | findstr "80" TCP 127.0.0.1: 80 0.0.0.0: 0 listening 2448. Is the port occupied by the process with process number 2448? continue to run the following command: C: /> tasklist | findstr "2448" thread.exe 2016 console 0...