1. 下載安裝包 1 2 3 https://www.python.org/ftp/python/2.7.14/python-2.7.14.amd64.msi # 2.7安裝包 https://www.python.org/ftp/python/3.6.4/python-3.6.4-amd64.ex ...
1. 下載安裝包
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https://www.python.org/ftp/python/2.7.14/python-2.7.14.amd64.msi # 2.7安裝包
https://www.python.org/ftp/python/3.6.4/python-3.6.4-amd64.exe # 3.6安裝包
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2. 安裝python3.6
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增加環境變數
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3. 在命令行測試
4. 安裝python2.7
5. 將python2增加到環境變數里
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C:\Python27\Scripts\;C:\Python27\;
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6. 將C:\Python27目錄下的python.exe 和pythonw.exe 改為python2.exe 和pythonw2.exe
7. 將C:\Python36目錄下的python.exe 和pythonw.exe 改為python3.exe 和pythonw3.exe
8. 此時在命令行輸入python3代表python3 輸入python2代表python2
二. pip安裝
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#在cmd上執行
python3 -m pip install --upgrade pip --force-reinstall
python2 -m pip install --upgrade pip --force-reinstall
#查看pip版本
pip3 -V
pip2 -V
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