对于 openSUSE Tumbleweed，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/X11:xfce:4.21/openSUSE_Tumbleweed/X11:xfce:4.21.repo
zypper refresh
zypper install libxfce4windowing
对于 openSUSE Slowroll，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/X11:xfce:4.21/openSUSE_Slowroll/X11:xfce:4.21.repo
zypper refresh
zypper install libxfce4windowing
对于 openSUSE Factory，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/X11:xfce:4.21/openSUSE_Factory/X11:xfce:4.21.repo
zypper refresh
zypper install libxfce4windowing
对于 16.0，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/X11:xfce:4.21/16.0/X11:xfce:4.21.repo
zypper refresh
zypper install libxfce4windowing
对于 15.6，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/X11:xfce:4.21/15.6/X11:xfce:4.21.repo
zypper refresh
zypper install libxfce4windowing