sdk环境变量：
path
%ANDROID_SDK_HOME%\platform-tools
% ANDROID_SDK_HOME%\tools
ANDROID_SDK_HOME
D:\android-sdk_r24.4.1-windows\android-sdk-windows
报错信息：
Could not find 'adb.exe' in PATH. Please set the ANDROID_HOME or ANDROID_SDK_ROOT environment variables to the corect Android SDK root directory path
设置appium：添加sdk地址
genymotion中设置adb：