Python Sleep休眠函数

 #!/usr/bin/env python
 import os
 import time
 def fun(name):
     write_name="command %s failed!\n" % name
     print write_name
     f = open('/tmp/cs.log','a')
     f.write(write_name)
     f.close()
 def tary(name):
     print "the command is %s" % name
     command_id = os.system(name)
     while command_id != 0:
         fun(name)
         time.sleep(10)
         command_id = os.system(name)
 time.sleep(5)
 tary("reboot")

Python 编程中使用 time 模块可以让程序休眠

具体方法是time.sleep(秒数)，其中“秒数”以秒为单位，可以是小数，0.1秒则代表休眠100毫秒。

 # 例1：循环输出休眠1秒
 import time
 i = 1
 while i <= 3:
     print i # 输出i
     i += 1
     time.sleep(1) # 休眠1秒

 # 例2：循环输出休眠100毫秒
 import time
 i = 1
 while i <= 3:
     print i # 输出i
     i += 1
     time.sleep(0.1) # 休眠0.1秒