本文实例讲述了python实现简单的计时器功能函数。分享给大家供大家参考。具体如下：
此函数通过python实现了一个简单的计时器动能：
''' Simple Timing Function.This function prints out a message with the elapsed time from theprevious call. It works with most Python 2.x platforms. The functionuses a simple trick to store a persistent variable (clock) withoutusing a global variable.'''import timedef dur( op=None, clock=[time.time()] ): if op != None: duration = time.time() - clock[0] print '%s finished. Duration %.6f seconds.' % (op, duration) clock[0] = time.time()# Exampleif __name__ == '__main__': import array dur() # Initialise the timing clock opt1 = array.array('H') for i in range(1000): for n in range(1000): opt1.append(n) dur('Array from append') opt2 = array.array('H') seq = range(1000) for i in range(1000): opt2.extend(seq) dur('Array from list extend') opt3 = array.array('H') seq = array.array('H', range(1000)) for i in range(1000): opt3.extend(seq) dur('Array from array extend')# Output:# Array from append finished. Duration 0.175320 seconds.# Array from list extend finished. Duration 0.068974 seconds.# Array from array extend finished. Duration 0.001394 seconds.
登录后复制
希望本文所述对大家的Python程序设计有所帮助。
版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容， 请发送邮件至253000106@qq.com举报，一经查实，本站将立刻删除。
发布者：PHP中文网，转转请注明出处：https://www.chuangxiangniao.com/p/2292813.html
