这篇文章主要介绍了python定时执行指定函数的方法,涉及Python中sleep方法延时执行的相关使用技巧,需要的朋友可以参考下
本文实例讲述了python定时执行指定函数的方法。分享给大家供大家参考。具体实现方法如下:
# time a function using time.time() and the a @ function decorator # tested with Python24 vegaseat 21aug2005 import time def print_timing(func): def wrapper(*arg): t1 = time.time() res = func(*arg) t2 = time.time() print '%s took %0.3f ms' % (func.func_name, (t2-t1)*1000.0) return res return wrapper # declare the @ decorator just before the function, invokes print_timing() @print_timing def getPrimeList(n): """ returns a list of prime numbers from 2 to <n using a sieve algorithm""" if n < 2: return [] [2] # do only odd numbers starting at 3 s n+1, 2) n**0.5 may be slightly faster than math.sqrt(n) mroot=n ** 0.5 half=len(s) i=0 m while mroot: s[i]: j s[j]=0 half: 0 +=m i+1 2*i+3 [2]+[x for x in x] __name__== "__main__": print "prime from 2 to prime numbers from 2 to <10,000,000 using a sieve al<strong style="color:transparent">来源gaodai#ma#com搞@@代~&码*网</strong>gorithm getPrimeList took 4750.000 ms """
希望本文所述对大家的Python程序设计有所帮助。
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