str='aaabbbccceddddd'

Èç¹ûÎÒÒªËÑË÷×Ö·û´®ÖÐµÄ e£¬   ÇëÎÊÔõô±í´ï£¿ лл

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str.find('e')

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>
> str='aaabbbccceddddd'
>
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str='aaabbbccceddddd'
if 'e' in str:
    print "yes"


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>
> str='aaabbbccceddddd'
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 лл¡«¡« Ô­À´ÄÇô¼òµ¥¡«¡« ÄÇreÀïµÄ searchÊÇʲô×÷Óã¿
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2008/1/17 小龙 <freefis在gmail.com>:
>  谢谢～～　原来那么简单～～　　那re里的 search是什么作用？
>
search可以在字符串的中间找到一个匹配的结果，而match是从字符串开始进行的。起点不同。

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The re <file:///D:/Users/cn1ll290/Desktop/python/lib/module-re.html> module
provides regular expression tools for advanced string processing. For
complex matching and manipulation, regular expressions offer succinct,
optimized solutions:

re <file:///D:/Users/cn1ll290/Desktop/python/lib/module-re.html>Ä£¿éΪ¸ß¼¶×Ö·û´®´¦ÀíÌṩÁËÕýÔò±í´ïʽ¹¤¾ß¡£¶ÔÓÚ¸´ÔÓµÄÆ¥ÅäºÍ´¦Àí£¬ÕýÔò±í´ïʽÌṩÁ˼ò½à¡¢ÓÅ»¯µÄ½â¾ö·½°¸¡£

>>> import re
>>> re.findall(r'\bf[a-z]*', 'which foot or hand fell fastest')
['foot', 'fell', 'fastest']
>>> re.sub(r'(\b[a-z]+) \1', r'\1', 'cat in the the hat')
'cat in the hat'

 When only simple capabilities are needed, string methods are preferred
because they are easier to read and debug:

Èç¹ûÖ»ÐèÒª¼òµ¥µÄ¹¦ÄÜ£¬Ó¦¸ÃÊ×ÏÈ¿¼ÂÇ×Ö·û´®·½·¨£¬ÒòΪËüÃǷdz£¼òµ¥£¬Ò×ÓÚÔĶÁºÍµ÷ÊÔ¡£

>>> 'tea for too'.replace('too', 'two')
'tea for two'



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给你贴个逻辑匹配字符串好了

def match(text, andwords=[], orwords=[], notwords=[]):
    '''匹配字符串
    '''
    for notword in notwords:
        if notword in text:
            return False
    for andword in andwords:
        if andword not in text:
            return False
    for orword in orwords:
        if orword in text:
            return True
    return True


>>> match('早上好啊，这里是火星', ['早上','火星'])
True
>>> match('早上好啊，这里是火星', ['早上','火星'], ['好啊','不好'])
True
>>> match('早上好啊，这里是火星', ['早上', '火星'], ['好啊', '不好'], ['很好'])
True
>>> match('早上好啊，这里是火星', ['早上', '火星'], ['好啊', '不好'], ['好啊'])
False
>>>

 Äܸø¸ösearchµÄÀý×Óô~  лл
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2008/1/17 小龙 <freefis在gmail.com>:
>  能给个search的例子么~  谢谢

建议看文档。

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