Linux下编译安卓:
注意,需要下载Android NDK
CGO_ENABLED=1
GOOS=android
GOARCH=arm64
CC_FOR_TARGET=$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang
CC=$NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android21-clang