Python中统计函数运行耗时的方法

import timedef time_me(fn):  def _wrapper(*args, **kwargs):    start = time.clock()    fn(*args, **kwargs)    print "%s cost %s second"%(fn.__name__, time.clock() - start)  return _wrapper#这个装饰器可以在方便地统计函数运行的耗时。#用来分析脚本的性能是最好不过了。#这样用：@time_medef test(x, y):  time.sleep(0.1)@time_medef test2(x):  time.sleep(0.2)test(1, 2)test2(2)#输出：#test cost 0.1001529524 second#test2 cost 0.199968431742 second

import timeimport functoolsdef time_me(info="used"):  def _time_me(fn):    @functools.wraps(fn)    def _wrapper(*args, **kwargs):      start = time.clock()      fn(*args, **kwargs)      print "%s %s %s"%(fn.__name__, info, time.clock() - start), "second"    return _wrapper  return _time_me@time_me()def test(x, y):  time.sleep(0.1)@time_me("cost")def test2(x):  time.sleep(0.2)test(1, 2)test2(2)