1. 编辑
vi ~/.bash_profile
2. 输入内容：
export ANDROID_HOME=/Users/yfsu/Library/Android/sdk
export PATH=${PATH}:${ANDROID_HOME}/tools
export PATH=${PATH}:${ANDROID_HOME}/platform-tools
3. 重新载入
source ~/.bash_profile
4. 验证
adb version
原文：https://www.cnblogs.com/yongfengnice/p/11589629.html