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41 lines
1.2 KiB
Plaintext
41 lines
1.2 KiB
Plaintext
Content-Type: text/x-zim-wiki
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Wiki-Format: zim 0.4
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Creation-Date: 2012-10-04T13:20:41+08:00
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====== str ======
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Created Thursday 04 October 2012
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| join(...)
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| S.join(iterable) -> string
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| Return a string which is the concatenation of __the strings in the__
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__ | iterable__. The separator between elements is S.
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iterable迭代器对象每次返回的__必须是字符串对象__。
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>>> ":".join("abcd")
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'a:b:c:d'
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>>> ":".join(['a','b','c','d'])
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'a:b:c:d'
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>>> ":".join(['a',__123__,'c'])
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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TypeError: sequence item 1: __expected string__, int found
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>>> ":".join(['a',['ab'],'c'])
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Traceback (most recent call last):
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File "<stdin>", line 1, in <module>
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TypeError: sequence item 1: expected string, list found
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>>>
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| rsplit(...)
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| S.rsplit([sep [,maxsplit]]) -> list of strings
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| Return a list of the words in the string S, using sep as the
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| delimiter string, starting at the end of the string and working
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| to the front. If maxsplit is given, at most maxsplit splits are
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| done. If sep is not specified or is __None__, any whitespace string
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| is a separator.
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