1、在终端中 获取python3的安装路径：which python

我的系统返回：/Library/Frameworks/Python.framework/Versions/3.8/bin/python3

2、在终端中 获取pip3的安装路径：which pip3

我的系统返回：/Library/Frameworks/Python.framework/Versions/3.8/bin/pip3

3、在终端中执行打开.bash_profile文件：vim ~/.bash_profile

4、然后在文件中添加:

export PATH=${PATH}:/Library/Frameworks/Python.framework/Versions/3.8/bin/python3

alias python="/Library/Frameworks/Python.framework/Versions/3.8/bin/python3"

alias pip="/Library/Frameworks/Python.framework/Versions/3.8/bin/pip3"

请对应替换自己电脑的python3安装路径

5、关闭文件，在终端中执行：source ~/.bash_profile

6 vim ~/.zshrc 在zshrc里加入