下载：
https://developer.android.com/studio/releases/platform-tools
ADB和Fastboot for Windows
https://dl.google.com/android/repository/platform-tools-latest-windows.zip
ADB和Fastboot for Mac
https://dl.google.com/android/repository/platform-tools-latest-darwin.zip
ADB和Fastboot for Linux
https://dl.google.com/android/repository/platform-tools-latest-linux.zip
# sudo cp adb fastboot /usr/local/bin
谷歌中国镜像：
https://developer.android.google.cn/studio/releases/platform-tools