http://blog.51cto.com/liubin0505star/1717473
windows：
wmic bios get serialnumber
linux：
dmidecode
esxi：
esxcli hardware platform get
![luogu P3645 [APIO2015]雅加达的摩天楼](https://www.winkp.com/wp-content/themes/ZTMao.com-M1-V2.5.1-1230/timthumb.php?src=https://www.winkp.com/wp-content/themes/ZTMao.com-M1-V2.5.1-1230/img/random/1.jpg&w=218&h=124&zc=1)
