DDR爱好者之家

python编程开发之textwrap文本样式处理技巧
站长资源 2025/2/24 佚名
68 1538
DDR爱好者之家 Design By 杰米

本文实例讲述了python编程开发之textwrap文本样式处理技巧。分享给大家供大家参考，具体如下：

在看python的API的时候，发现python的textwrap在处理字符串样式的时候功能强大

在这里我做了一个demo：

textwrap提供了一些方法：

wrap(text, width = 70, **kwargs):这个函数可以把一个字符串拆分成一个序列

from textwrap import *
#使用textwrap中的wrap()方法
def test_wrap():
  test_str = '''  The textwrap module provides two convenience functions, wrap() and fill(), as well as 1
  TextWrapper, the class that does all the work, and two utility functions, dedent() and indent(). If 2
  you're just wrapping or filling one or two text strings, the convenience functions should be good 3
  enough; otherwise, you should use an instance of TextWrapper for efficiency. 4
  '''
  print(wrap(test_str, 20))
def main():
  test_wrap()
if __name__ == '__main__':
  main()

输出效果：

Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
> ================================ RESTART ================================
> 
['  The textwrap', 'module provides two', 'convenience', 'functions, wrap()', 'and fill(), as well', 'as 1', 'TextWrapper, the', 'class that does all', 'the work, and two', 'utility functions,', 'dedent() and', 'indent(). If 2', 'you're just wrapping', 'or filling one or', 'two text strings,', 'the convenience', 'functions should be', 'good 3   enough;', 'otherwise, you', 'should use an', 'instance of', 'TextWrapper for', 'efficiency. 4']
>

我们会发现，wrap()函数，把字符串拆分成了一个序列，在这个序列中，每个元素的长度是一样的。

fill(text, width=70, **kwargs) :该方法可以根据指定的长度，进行拆分字符串，然后逐行显示

from textwrap import *
#fill()方法
def test_wrap():
  test_str = '''  The textwrap module provides two convenience functions, wrap() and fill(), as well as 1
  TextWrapper, the class that does all the work, and two utility functions, dedent() and indent(). If 2
  you're just wrapping or filling one or two text strings, the convenience functions should be good 3
  enough; otherwise, you should use an instance of TextWrapper for efficiency. 4
  '''
  print(fill(test_str, 40))
def main():
  test_wrap()
if __name__ == '__main__':
  main()

运行效果：

Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
> ================================ RESTART ================================
> 
  The textwrap module provides two
convenience functions, wrap() and
fill(), as well as 1   TextWrapper,
the class that does all the work, and
two utility functions, dedent() and
indent(). If 2   you're just wrapping
or filling one or two text strings, the
convenience functions should be good 3
enough; otherwise, you should use an
instance of TextWrapper for efficiency.
>

dedent()方法->文本进行不缩进显示，相应的indent()方法 -> 进行缩进显示

from textwrap import *
#dedent()方法
def test_wrap():
  test_str = '''  The textwrap module provides two convenience
    functions, wrap() and fill(), as well as 1
  TextWrapper, the class that does all the work,
    and two utility functions, dedent() and indent(). If 2
  you're just wrapping or filling one or two text strings,
    the convenience functions should be good 3
  enough; otherwise, you should use an instance
    of TextWrapper for efficiency. 4
  '''
  print(repr(dedent(test_str)))
def main():
  test_wrap()
if __name__ == '__main__':
  main()

运行效果：

Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
> ================================ RESTART ================================
> 
'The textwrap module provides two convenience\n  functions, wrap() and fill(), as well as 1\nTextWrapper, the class that does all the work,\n  and two utility functions, dedent() and indent(). If 2\nyou're just wrapping or filling one or two text strings,\n  the convenience functions should be good 3\nenough; otherwise, you should use an instance\n  of TextWrapper for efficiency. 4\n'
>

希望本文所述对大家Python程序设计有所帮助。

DDR爱好者之家 Design By 杰米
广告合作：本站广告合作请联系QQ：858582 申请时备注：广告合作（否则不回）
免责声明：本站资源来自互联网收集,仅供用于学习和交流,请遵循相关法律法规,本站一切资源不代表本站立场,如有侵权、后门、不妥请联系本站删除！
DDR爱好者之家 Design By 杰米
ddrfans.com DDR爱好者之家
8,675无损音乐
1,324高清电影
213破解软件
70,141收录资讯

更新日志

友情链接

杰晶网络 DDR爱好者之家 南强小屋 黑松山资源网 白云城资源网
DDR爱好者之家 Design By 杰米