python 贪婪匹配 非贪婪匹配

 str_pat = re.compile(r'"(.*)"')
 text1 = 'Computer says "no."'
 str_pat.findall(text1)
 ['no.']
 text2 = 'Computer says "no." Phone says "yes."'
 str_pat.findall(text2)
 ['no." Phone says "yes.']

 str_pat = re.compile(r'"(.*?)"')
 str_pat.findall(text2)
 ['no.', 'yes.']