通过python内置的timeit模块计算代码执行时间,pythontimeit,>>> import t


>>> import timeit>>> timeit.timeit('"-".join(str(n) for n in range(100))', number=10000)0.8187260627746582>>> timeit.timeit('"-".join([str(n) for n in range(100)])', number=10000)0.7288308143615723>>> timeit.timeit('"-".join(map(str, range(100)))', number=10000)0.5858950614929199

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