打开终端
输入vim ~/.bash_profile
然后把下面的设置放到最后
# Android Sdk.#安卓sdk路径
export ANDROID_HOME=/Users/zmb/Library/Android/sdk
export PATH=${PATH}:${ANDROID_HOME}/tools
export PATH=${PATH}:${ANDROID_HOME}/platform-tools
export PATH=${PATH}:${ANDROID_HOME}/tools/bin
export PATH=${PATH}:${ANDROID_HOME}/emulator
export PATH=${PATH}:${ANDROID_HOME}/build-tools/28.0.3
export ANDROID_SDK=${ANDROID_HOME}
export ANDROID_NDK=${ANDROID_HOME}/ndk-bundle
按一下esc 然后输入:wq保存退出
然后输入source ~/.bash_profile, 或者退出终端再打开，不然不会生效
生效后就可以直接使用apktool apksigner adb 这些命令了
