Windows使用正则表达式查看端口

netstat －-help#获取帮助
netstat -an > c:\aaa.txt #将显示的结果输入到C盘aaa.txt文件中

netstat -ano | find "443"#查看443端口

@echo off
netstat -an > c:\t.txt #在C盘创建文件名为t.txt
type c:\t.txt | find ":21" > tmp.txt && echo "ftp is running...."
type c:\t.txt | find ":80" > tmp.txt && echo "http is running...."
pause
type c:\t.txt | find ":123" > tmp.txt && echo "hehe is running...."
pause
del c:\t.txt
::这是我试验用于检测各项服务是否开启