dnf install mplayer
dnf install smplayer
提示倉庫
里沒有這個軟件
fedora默認不提供一些有版權爭議的軟件，非開源的項目包，所以需要用rpm fusion源，來補充Linux的“軟件庫”
解決方案:
fedora 26
4.11.11-300.fc26.x86_64
一，添加RPM Fusion源
進入 https://rpmfusion.org/Configuration
點擊下載RPM Fusion free for Fedora 26， RPM Fusion nonfree for Fedora 26
# cd /home/for/Downloads/
# yum localinstall rpmfusion-free-release-26.noarch.rpm
# yum localinstall rpmfusion-nonfree-release-26.noarch.rpm
二，安裝mplayer, smplayer(如果下載失敗，再次執行#dnf install bar)
# dnf install mplayer
#dnf install smplayer