上面的都是windows系统平台的安装包。 x86适合32位操作系统；x86-64适合64位操作系统。 下面是官网的解释： https://www.python.org/downloads/release/python-350/ The binaries for AMD64 will also work on processors that implement the Intel 64 architecture. (Also known as the "x64" architecture, and formerly known as both "EM64T" and "x86-64".) They will not work on Intel Itanium Processors (formerly "IA-64").
Windows users: If installing Python 3.5 as a non-privileged user, you may need to escalate to administrator privileges to install an update to your C runtime libraries.
Windows users: There are now "web-based" installers for Windows platforms; the installer will download the needed software components at installation time.
Windows Users: There are redistributable zip files containing the Windows builds, making it easy to redistribute Python as part of another software package. Please see the documentation regarding Embedded Distribution for more information.It is intended for acting as part of another application, rather than being directly accessed by end-users.