pip which should be installed with Python3.62 doesn't work in windows

[Bear Light]

I found many rookies like me asking similar question: why "pip" is not
recognized by cmd?
I install Python 3.62 64bit in Win10 and I'm sure I add PATH, the Python
tutorial doesn't even mention about PATH.
You can see the following picture showing the tutorial doesn't work.
Please give a hand to the helpless rookies and me.

[image: 內置圖片 1]
tutorials url:
https://packaging.python.org/tutorials/installing-packages/#creating-virtual-environments