How to set python version in Pycharm

There are many Python IDEs, including PyCharm, Sublime Text, Eclipse+Pydev, but I personally think Pycharm is a good python editing tool. The existing python versions include Python 2.x and Python 3.x versions, between the two A little bit different.
1. Python official download website: http://www.python.org
2. PyCharm official download address: http://www.jetbrains.com/pycharm/download/
After installing the corresponding version, install it in pycharm according to our needs Steps are as follows:
1. Find File-->Settings...
2. In Project: [the name of the project you want to change]-->Project Interpreter
3. Find the version you want to set, and then click Apply, Click OK again.
At this point you have completed the settings, and you can play python happily.