摘要：
1.下载安装包123https://www.python.org/ftp/python/2.7.14/python-2.7.14.amd64.msi#2.7安装程序包https://www.python.org/ftp/python/3.6.4/python-3.6.4-amd64.exe#3.6安装软件包2.安装python 3.61并添加环境变量3.在命令行上测试4.安装python 2.75.安装python
1. 下载安装包
1 2 3 | https://www.python.org/ftp/python/2.7.14/python-2.7.14.amd64.msi # 2.7安装包https://www.python.org/ftp/python/3.6.4/python-3.6.4-amd64.exe # 3.6安装包 |
2. 安装python3.6
1 | 增加环境变量 |
3. 在命令行测试
4. 安装python2.7
5. 将python2增加到环境变量里
1 | C:Python27Scripts;C:Python27; |
6. 将C:Python27目录下的python.exe 和pythonw.exe 改为python2.exe 和pythonw2.exe
7. 将C:Python36目录下的python.exe 和pythonw.exe 改为python3.exe 和pythonw3.exe
8. 此时在命令行输入python3代表python3 输入python2代表python2
二. pip安装
1 2 3 4 5 6 7 8 9 | #在cmd上执行 python3 -m pip install --upgrade pip --force-reinstallpython2 -m pip install --upgrade pip --force-reinstall#查看pip版本pip3 -Vpip2 -V |
