打开文件编辑器：
进入终端，输入open -e .bash_profile或者open -t ~/.bash_profile 打开profile文件
填写配置的环境变量：
#示例代码
export PATH=$PATH:/usr/local/bin
export ANDROID_HOME=/Users/lucky/Desktop/Auto/tools/android-sdk-macosx
PATH=${PATH}:$ANDROID_HOME/tools:$ANDROID_HOME/platform_tools
echo $ANDROID_HOME
PATH="/Library/Frameworks/Python.framework/Versions/2.7/bin:${PATH}"
export PATH
export JAVA_HOME=$(/usr/libexec/java_home)
export PATH=$JAVA_HOME/bin:$PATH
export CLASS_PATH=$JAVA_HOME/lib
export PATH=$PATH:$ANDROID_HOME/platform-tools
export PATH=$JAVA_HOME/bin:$PATH:/Users/lucky/Desktop/Auto/tools/apache-tomcat-9.0.8/bin
export ANT_HOME=/Users/lucky/Desktop/Auto/tools/apache-ant-1.10.3
export PATH=$PATH:$JAVA_HOME/bin:$ANT_HOME/bin
# Add Cmake Root to Path
export CMAKE_ROOT=/Applications/CMake.app/Contents/bin
export PATH=$CMAKE_ROOT:$PATH
export PATH="/usr/local/opt/[email protected]/bin:$PATH"
PATH="/usr/local/mysql/bin:${PATH}"
export PATH
export DYLD_LIBRARY_PATH=/usr/local/mysql/lib/
export VERSIONER_PYTHON_PREFER_64_BIT=yes
export VERSIONER_PYTHON_PREFER_32_BIT=no
# Setting PATH for Python 3.7
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.7/bin:${PATH}"
export PATH
保存配置：
编辑完成后保存profile文件后保存，返回终端，输入source .bash_profile使环境变量生效
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