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- ???????Python : 3.7.0
- ?????????OS : Ubuntu 18.04.1 LTS
- ????????IDE : PyCharm 2018.2.4
- ??????Conda : 4.5.11
- ???typesetting : Markdown
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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]: {1, 2, 3, 4, 5}
Out[1]: {1, 2, 3, 4, 5}
In [2]: {1, 2, 2, 3} # 重复的会留下一个
Out[2]: {1, 2, 3}
In [3]: my_set = {1, 2, 3}
In [4]: my_set[1] # 不支持索引
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-4-4cbab1ef0a31> in <module>()
----> 1 my_set[1] # 不支持索引
TypeError: 'set' object does not support indexing
In [5]: exit
(py37) coder@Ubuntu:~$ source deactivate
coder@Ubuntu:~$
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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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Python具有开源、跨平台、解释型、交互式等特性,值得学习。
Python的设计哲学:优雅,明确,简单。提倡用一种方法,最好是只有一种方法来做一件事。
代码的书写要遵守规范,这样有助于沟通和理解。
每种语言都有独特的思想,初学者需要转变思维、踏实践行、坚持积累。
原文地址:https://www.cnblogs.com/xingchuxin/p/10440916.html
时间: 2024-10-16 07:10:15