对于 standard，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:lalala123/standard/home:lalala123.repo
zypper refresh
zypper install mono-winfxcore
对于 snapshot，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:lalala123/snapshot/home:lalala123.repo
zypper refresh
zypper install mono-winfxcore
对于 openSUSE Factory ARM，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:lalala123/openSUSE_Factory_ARM/home:lalala123.repo
zypper refresh
zypper install mono-winfxcore
对于 15.6，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:lalala123/15.6/home:lalala123.repo
zypper refresh
zypper install mono-winfxcore