python introduction:
Guido van Rossum (Guido van Rossum) created a python language. python is a high-level object-oriented language
python species
JPython，IronPython ，JavaScriptPython，RubyPython，CPython
Python's advantages and disadvantages:
advantage:
Development of high efficiency, change machine object-oriented language, portability, and can be embedded scalability characteristics
Disadvantages:
Low efficiency
python installation:
download link:https://www.python.org/downloads/
python can be installed on windows, Linux, UNIX, Mac OS X and other systems, you can choose your own version when downloading, I was selected to install on windows system.
Python software is installed on the windows system, and use the same method of installation, click on the downloaded installation package, step by step installation of python on the line, after installing python to configure environment variables.
Configuration process:
右键计算机 ，打开属性，点击高级系统设置，找到高级，点击环境变量，在系统变量中找变量名为Path 的一行，双击， 将 Python安装目录追加到Path中（注意使用用 ；进行分割）。
Verify successful installation:
Right at the beginning of the windows system, click Run, type cmd, and then press Enter to bring up the cmd program, enter python, if it can enter the interactive environment on behalf of python installed successfully.
Pycharm installation:
Download: https: //www.jetbrains.com/pycharm/download/
Professional and Community pytharm there are two, here is the choice of Professional.
Installation process:
Select the installation directory:
Select the following options:
Finish off the end of the direct installation
Because it is the professional version of pycharm, so it is necessary to activate:
After activation you can use.