python定时执行指定函数的方法

# 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 
prime numbers from 2 to <10,000,000 using a sieve algorithm
getPrimeList took 4750.000 ms
"""

希望本文所述对大家的Python程序设计有所帮助。