Matlab的tic和toc函数的Python等效项是什么? [英] What is the Python equivalent of Matlab's tic and toc functions?

问题描述

Matlab的 tic和toc函数的Python等效语言是什么?

What is the Python equivalent of Matlab's tic and toc functions?

推荐答案

除了ThiefMaster提到的timeit，一种简单的方法就是(导入time之后):

Apart from timeit which ThiefMaster mentioned, a simple way to do it is just (after importing time):

t = time.time()
# do stuff
elapsed = time.time() - t

我有一个喜欢使用的帮助器类:

I have a helper class I like to use:

class Timer(object):
    def __init__(self, name=None):
        self.name = name

    def __enter__(self):
        self.tstart = time.time()

    def __exit__(self, type, value, traceback):
        if self.name:
            print('[%s]' % self.name,)
        print('Elapsed: %s' % (time.time() - self.tstart))

它可以用作上下文管理器:

It can be used as a context manager:

with Timer('foo_stuff'):
   # do some foo
   # do some stuff

有时候，我发现此技术比timeit更方便-这完全取决于您要测量的内容.

Sometimes I find this technique more convenient than timeit - it all depends on what you want to measure.

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