确定字符串中是否有多个单词

Question

例如：

line = 'how are you?'

if line == [has more than one word]: line.split()

这可能吗？

Answer 1

试试这个：

line = 'how are you?'

if len(line.split()) > 1: # has more than 1 word

Answer 2

获取line.split（）似乎更加pythonic，但如果这将是一个昂贵的操作，这可能会更快：

if ' ' in 'how are you?': line.split()

Answer 3

line.strip().count(' ') > 0 # finds at least one separator after removing the spaces at the left and the right of the actual string

或者如果你真的想要速度

line.strip().find(' ') != -1 # not finding the ' ' character in the string