RPM包安装升级

1. 添加Rockhip官方源

sudo dnf localinstall --nogpgcheck http://repo.rock-chips.com/fedora/rockchip-repo-1.0-3.fc28.aarch64.rpm

2. 安装软件包：

example-devel-1.0.1-2.fc28.aarch64.rpm
sudo dnf install example-devel

3. 卸载软件包：

example-devel-1.0.1-2.fc28.aarch64.rpm
sudo dnf remove example-devel

4. 升级软件包：

sudo dnf clean all
sudo dnf update