3

我试图运行 timeit 来为 python 函数计时,如下所示:

for i in range(1, 30):
    print 'The time for ' + str(i) + ' is ' + str(timeit.Timer('Fib(i)', 'from problem1 import Fib').timeit())

global name 'i' is not defined即使我在程序开始时将我定义为global i

当我像这样运行 timeit 时:

print timeit.Timer('Fib(5)', 'from problem1 import Fib').timeit()

有用。有什么建议么?

4

1 回答 1

4

Use string formatting:

for i in range(1, 30):
    t = timeit.Timer('Fib({:d})'.format(i), 'from problem1 import Fib').timeit()
    print('The time for {i:d} is {t:0.2f}'.format(i=i, t=t))
于 2014-01-28T01:55:39.357 回答