1. 安裝python2.7和python3.5
2. 添加python2.7和python3.5的環(huán)境變量
- C:\Python27
- C:\Python27\Scripts
- C:\Python35
- C:\Python35\Scripts
3. 進(jìn)入python2.7的安裝目錄,python.exe重命名為python2.exe
4. 進(jìn)入python3.5的安裝目錄,python.exe重命名為python3.exe
5. 在cmd中調(diào)用python2和python3
- 輸入python2可以調(diào)用python2.7
- 輸入python3可以調(diào)用python3.7
6. 在不用python版本下調(diào)用pip安裝軟件
python2 -m pip install numpy //安裝
python2 -m pip list //
python2 -m pip install --upgrade pip //更新