python 随机_python sleep函数 随机

随机sleep

sleeptime=random.randint(0, 300)

time.sleep(sleeptime)

以下为转载http://hi.baidu.com/liuhelishuang/item/1f8cd8f75bd246dd6325d28c

#!/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1：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