cmake的入门
https://blog.csdn.net/whahu1989/article/details/82078563?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EsearchFromBaidu%7Edefault-2.pc_relevant_baidujshouduan&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EsearchFromBaidu%7Edefault-2.pc_relevant_baidujshouduan
as配置ndk与cmake官方教程（先配置再建立新项目）
https://developer.android.com/studio/projects/install-ndk