参考 https://www.cnblogs.com/u-drive/articles/8419674.html
Step1:下载jdk,eclipse
Step2:
下载Android SDK(Software Development Kit)和在Eclipse安装ADT插件
Android SDK下载:https://developer.android.com/studio/#downloads (不过好像用Android Studio的更多一点)
(好的下载后发现没有sdk manager :( 待续)