Python3基础 str split 用指定的字符将字符串分割

   Python : 3.7.0

   OS : Ubuntu 18.04.1 LTS

  IDE : PyCharm 2018.2.4

Conda : 4.5.11

typesetting : Markdown

code

coder@Ubuntu:~$ source activate py37
(py37) coder@Ubuntu:~$ ipython
Python 3.7.0 (default, Jun 28 2018, 13:15:42) 
Type 'copyright', 'credits' or 'license' for more information
IPython 6.5.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: content = "hello,world"

In [2]: hello_str = content.split(",")

In [3]: hello_str
Out[3]: ['hello', 'world']

In [4]: hello_str,world_str = content.split(',', 1)

In [5]: hello_str
Out[5]: 'hello'

In [6]: world_str
Out[6]: 'world'

In [7]: exit
(py37) coder@Ubuntu:~$ source deactivate
coder@Ubuntu:~$

more knowledge

split(self, /, sep=None, maxsplit=-1)
    Return a list of the words in the string, using sep as the delimiter string.
    
    sep
      The delimiter according which to split the string.
      None (the default value) means split according to any whitespace,
      and discard empty strings from the result.
    maxsplit
      Maximum number of splits to do.
      -1 (the default value) means no limit.

coder@Ubuntu:~$ source activate py37
(py37) coder@Ubuntu:~$ ipython
Python 3.7.0 (default, Jun 28 2018, 13:15:42) 
Type 'copyright', 'credits' or 'license' for more information
IPython 6.5.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: my_str = "hello,world,hello,world"

In [2]: my_str.split(',', 1)
Out[2]: ['hello', 'world,hello,world']

In [3]: my_str.split(',', 2)
Out[3]: ['hello', 'world', 'hello,world']

In [4]: my_str.split(',', 3)
Out[4]: ['hello', 'world', 'hello', 'world']

In [5]: my_str.split(',', 4)
Out[5]: ['hello', 'world', 'hello', 'world']

In [6]: exit
(py37) coder@Ubuntu:~$ source deactivate
coder@Ubuntu:~$

resource

[文档] docs.python.org/3
[规范] www.python.org/dev/peps/pep-0008
[规范] zh-google-styleguide.readthedocs.io/en/latest/google-python-styleguide/python_language_rules
[源码] www.python.org/downloads/source
[ PEP ] www.python.org/dev/peps
[平台] www.cnblogs.com
[平台] gitee.com

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