MAC查看端口占用情况

1. 终端命令

sudo lsof -i :9000

COMMAND    PID   USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
python3.6 2866      a 313u  IPv6     0x1111111111111     0t0  TCP *:cslistener (LISTEN)

2. 然后根据PID杀进程

sudo kill -9 2866