#先下载psutil库:pip install psutil

import psutil
import os,datetime
def main():
 print "电脑的开机时间",
 #调用psutil.boot_time()函数返回开机的时间戳
 dt = datetime.datetime.fromtimestamp(psutil.boot_time())
 #返回一个datetime对象
 print dt.strftime("%Y-%m-%d,%H:%M:%S")
if __name__=="__main__":
 main()