通过英文Android API学习Android技术是一个不错选择，当然养鸡的专业户要小心了
，下面分享一些下载英文文档的链接（请使用迅雷下载）：
https://dl-ssl.google.com/android/repository/docs-16_r03.zip
https://dl-ssl.google.com/android/repository/docs-17_r02.zip
https://dl-ssl.google.com/android/repository/docs-18_r01.zip
https://dl-ssl.google.com/android/repository/docs-19_r02.zip
https://dl-ssl.google.com/android/repository/docs-L_r01.zip
https://dl-ssl.google.com/android/repository/docs-21_r01.zip
https://dl-ssl.google.com/android/repository/docs-22_r01.zip
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原文：http://blog.csdn.net/gaohuanjie/article/details/46893319