The Python programming language
- pyenv
devzkndeMacBook-Pro:iOS-private-api-checker devzkn$ pyenv versions
system
3.2
* 3.6.5 (set by /Users/devzkn/code/iosre/iOS-private-api-checker/.python-version)
3.7.0b2
Python会安装在 /usr/local/bin 目录中，Python库安装在/usr/local/lib/pythonXX，XX为你使用的Python的版本号”
devzkndeMacBook-Pro:iOS-private-api-checker devzkn$ ls -lrt /usr/bin/python*
-rwxr-xr-x 4 root wheel 925 Jul 16 2017 /usr/bin/python-config
-rwxr-xr-x 1 root wheel 66880 Oct 26 2017 /usr/bin/python
-rwxr-xr-x 1 root wheel 66880 Oct 26 2017 /usr/bin/pythonw
lrwxr-xr-x 1 root wheel 75 Nov 24 2017 /usr/bin/python2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
lrwxr-xr-x 1 root wheel 82 Nov 24 2017 /usr/bin/python2.7-config -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7-config
lrwxr-xr-x 1 root wheel 76 Nov 24 2017 /usr/bin/pythonw2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/pythonw2.7
devzkndeMacBook-Pro:iOS-private-api-checker devzkn$ ls -lrt /usr/local/bin/python*
lrwxr-xr-x 1 devzkn wheel 38 Apr 4 14:59 /usr/local/bin/python-build -> ../Cellar/pyenv/1.2.3/bin/python-build
lrwxr-xr-x 1 devzkn wheel 34 Apr 4 16:42 /usr/local/bin/python3 -> ../Cellar/python/3.6.5/bin/python3
lrwxr-xr-x 1 devzkn wheel 41 Apr 4 16:42 /usr/local/bin/python3-config -> ../Cellar/python/3.6.5/bin/python3-config
lrwxr-xr-x 1 devzkn wheel 36 Apr 4 16:42 /usr/local/bin/python3.6 -> ../Cellar/python/3.6.5/bin/python3.6
lrwxr-xr-x 1 devzkn wheel 43 Apr 4 16:42 /usr/local/bin/python3.6-config -> ../Cellar/python/3.6.5/bin/python3.6-config
lrwxr-xr-x 1 devzkn wheel 37 Apr 4 16:42 /usr/local/bin/python3.6m -> ../Cellar/python/3.6.5/bin/python3.6m
lrwxr-xr-x 1 devzkn wheel 44 Apr 4 16:42 /usr/local/bin/python3.6m-config -> ../Cellar/python/3.6.5/bin/python3.6m-config
devzkndeMacBook-Pro:iOS-private-api-checker devzkn$ which python
/Users/devzkn/.pyenv/shims/python
Python是一个高层次的结合了解释性、编译性、互动性和面向对象的脚本语言。
- Python 是一种解释型语言： 开发过程中没有了编译这个环节。类似于PHP和Perl语言。
- Python 是交互式语言： 这意味着，您可以在一个Python提示符，直接互动执行写你的程序。
- Python 是面向对象语言: 这意味着Python支持面向对象的风格或代码封装在对象的编程技术。
- 可扩展性：相比 shell 脚本，Python 提供了一个更好的结构，且支持大型程序。
运行Python
1、交互式解释器
>>> 2+2
4
2、命令行脚本
/usr/bin/python iOS_private.py
3、集成开发环境（IDE：Integrated Development Environment）
IDLE
/usr/local/bin/charm
1)press ⌘O (Navigate | Class)
2)using ⇧⌘O (Navigate | File)
3)pressing ⌥F7 (Find Usages in the popup menu)
4)press F1 (View | Quick Documentation).
5) ⇧F6 (Refactor | Rename)
6)To quickly select the currently edited element (class, file, method or field) in any view (Project view, Structure view or other), press ⌥F1.
7)⌘E (View | Recent Files)
8)⌃O (Code | Override Methods).
Python标识符
See Also
/Users/devzkn/bin/knpost Python_brief_introduction Python 简介 -t py #原来""的参数，需要自己加上""
转载请注明：张坤楠的博客 > Python_brief_introduction
