Python序列中的周期数

Question

我在计算序列中的周期数时出错。我已经尝试过了

series = pd.Series(['how. are. you. today.', 'i. am. fine.', 'thank. you.'])
count = series.str.count('.')

预期结果是

0 4
1 3
2 2

但是我却得到了

0 21
1 12
2 11

我该如何解决？预先谢谢你。

Answer 1

series = pd.Series(['how. are. you. today.', 'i. am. fine.', 'thank. you.'])
count = series.str.count('\.')