python sleep函数 随机

发布时间:2019-09-08 09:14:40编辑:auto阅读(5260)

     

    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

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