翻不了墙的话，可以用迅雷下载

最新版本r21

https://dl.google.com/android/repository/android-ndk-r21-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r21-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r21-linux-x86_64.zip

历史版本：

https://dl.google.com/android/repository/android-ndk-r20b-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r20b-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r20b-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r20b-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r19c-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r19c-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r19c-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r19c-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r18b-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r18b-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r18b-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r18b-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r17c-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r17c-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r17c-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r17c-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r16b-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r16b-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r16b-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r15c-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r15c-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r15c-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r14b-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r14b-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r14b-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r14b-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r13b-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r13b-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r13b-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r13b-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r12b-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r12b-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r12b-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r12b-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r11c-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r11c-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r11c-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r11c-linux-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r10e-windows-x86.zip

https://dl.google.com/android/repository/android-ndk-r10e-windows-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r10e-darwin-x86_64.zip

https://dl.google.com/android/repository/android-ndk-r10e-linux-x86_64.zip

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