1、X86：對應系統是32位。X86-64對64位系統。
2、web-based、executable 、 embeddable zipfile是什么意思？
web-based: 透過網絡安裝的，就是執行安裝后才透過網絡下載python
executable: 可執行文件安裝，既把要安裝的python全部下載好在本機安裝
embeddable zipfile: zip 壓縮檔，就是python打包成zip壓縮包
Latest Python 3 Release - Python 3.7.1 Latest Python 2 Release - Python 2.7.15 Python 3.7.2rc1 - 2018-12-11 Download Windows x86 web-based installer Download Windows x86 executable installer Download Windows x86 embeddable zip file Download Windows x86-64 web-based installer Download Windows x86-64 executable installer Download Windows x86-64 embeddable zip file Download Windows help file