Python:总和字符串长度 [英] Python: Sum string lengths
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问题描述
在Python中,有没有比使用循环更合乎情理的方式来计算字符串长度了?
Is there a more idiomatic way to sum string lengths in Python than by using a loop?
length = 0
for string in strings:
length += len(string)
我尝试了sum()
,但是它仅适用于整数:
I tried sum()
, but it only works for integers:
>>> sum('abc', 'de')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: sum() can't sum strings [use ''.join(seq) instead]
推荐答案
我知道这是一个老问题,但是我不禁注意到Python错误消息告诉您如何执行此操作:
I know this is an old question, but I can't help noting that the Python error message tells you how to do this:
TypeError: sum() can't sum strings [use ''.join(seq) instead]
所以:
>>> strings = ['abc', 'de']
>>> print len(''.join(strings))
5
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