问每行字数

EN

df['totalwords'] = df['col'].str.split().str.len()

df['totalwords'] = df['col'].str.count(' ') + 1

df['totalwords'] = [len(x.split()) for x in df['col'].tolist()]

df['number_of_words'] = df.col.apply(lambda x: len(x.split()))

>>> df
                    col
0  This is one sentence
1           and another

df['number_of_words'] = df.col.apply(lambda x: len(x.split()))

>>> df
                    col  number_of_words
0  This is one sentence                4
1           and another                2

df['word_count'] = df['col'].str.split().map(len)

df = pd.DataFrame({'col': ['This is an example', 'This is another', 'A third']})

df['word_count'] = df['col'].str.split().map(len)

print(df)

#                   col  word_count
# 0  This is an example           4
# 1     This is another           3
# 2             A third           2