python实现在字符串中查找子字符串的方法

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Release: 2016-06-10 15:09:31
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本文实例讲述了python实现在字符串中查找子字符串的方法。分享给大家供大家参考。具体如下:

这里实现python在字符串中查找子字符串,如果找到则返回子字符串的位置,如果没有找到则返回-1

S = 'xxxxSPAMxxxxSPAMxxxx'
where = S.find('SPAM') # search for position
print where # occurs at offset 4

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希望本文所述对大家的Python程序设计有所帮助。

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