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  • Python中的splitlines

    Python中的splitlines用来分割行。当传入的参数为True时,表示保留换行符 \n。通过下面的例子就很明白了

    代码如下:
    mulLine = """Hello!!!
    Wellcome to Python's world!
    There are a lot of interesting things!
    Enjoy yourself. Thank you!"""

    print ''.join(mulLine.splitlines())
    print '------------'
    print ''.join(mulLine.splitlines(True))

    输出结果:
    Hello!!! Wellcome to Python's world! There are a lot of interesting things! Enjoy yourself. Thank you!
    ------------
    Hello!!!
    Wellcome to Python's world!
    There are a lot of interesting things!
    Enjoy yourself. Thank you!

    利用这个函数,就可以非常方便写一些段落处理的函数了,比如处理缩进等方法。如Cookbook书中的例子:

    复制代码 代码如下:
    def addSpaces(s, numAdd):
    white = " "*numAdd
    return white + white.join(s.splitlines(True))
    def numSpaces(s):
    return [len(line)-len(line.lstrip( )) for line in s.splitlines( )]
    def delSpaces(s, numDel):
    if numDel > min(numSpaces(s)):
    raise ValueError, "removing more spaces than there are!"
    return '\n'.join([ line[numDel:] for line in s.splitlines( ) ])
    def unIndentBlock(s):
    return delSpaces(s, min(numSpaces(s)))

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  • 原文地址:https://www.cnblogs.com/SophiaTang/p/2186126.html
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