adb: command not found 解决方法

1. 在~./bashrc和~./bash_profile 都添加 export PATH=/Users/mac/Downloads/platform-tools:$PATH

2. source ~./bash_profile 和 source ~./bashrc

3. 输入adb devices 测试一下是否生效

4. xxx  command not found 就把对应的环境变量复制粘贴到 ~./bashrc 文件中

大功告成！