re.S、 re.M

re.S是代表.可以匹配\n以及“  re.M是多行

 

code

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import re a = '''asdfsafhellopass:     234455     worldafdsf     ''' b = re.findall('hello(.*?)world',a) c = re.findall('hello(.*?)world',a,re.S | re.M) print 'b is ' , b print 'c is ' , c

 

打印结果

b is []
c is ['pass:\n 234455"\n aaa\n aawaw\n ']