This article mainly records the port occupancy of the three systems of mac / windows / linux
mac
lsof -i tcp:15740
kill <端口号>
Linux
lsof -i tcp:15740
kill -9 <端口号>
netstat -tunlp | grep 端口号
netstat -tunlp | grep 15740
kill -9 <端口号>
windows
netstat -ano
netstat -aon|findstr "15740"
taskkill /T /F /PID <端口号>