阿里鏡像源，直接在終端安裝，首先在終端輸入 su 點擊回車，輸入密碼，密碼輸入時為了安全是不顯示的，你輸入以后直接回車就可以了。
zypper addrepo -f http://mirrors.aliyun.com/opensuse/update/leap/42.3/oss openSUSE-42.3-Update-Oss
zypper addrepo -f http://mirrors.aliyun.com/opensuse/update/leap/42.3/non-oss/ openSUSE-42.3-Update-Non-Oss
zypper addrepo -f http://mirrors.aliyun.com/opensuse/distribution/leap/42.3/repo/oss/ openSUSE-42.3-Oss
zypper addrepo -f http://mirrors.aliyun.com/opensuse/distribution/leap/42.3/repo/non-oss/ openSUSE-42.3-Non-Oss
zypper addrepo -f http://mirrors.aliyun.com/packman/openSUSE_Leap_42.3/ aliyun-packman
科大鏡像源：
zypper ar -fc https://mirrors.ustc.edu.cn/opensuse/distribution/leap/42.3/repo/oss USTC:42.3:OSS
zypper ar -fc https://mirrors.ustc.edu.cn/opensuse/distribution/leap/42.3/repo/non-oss USTC:42.3:NON-OSS
zypper ar -fc https://mirrors.ustc.edu.cn/opensuse/update/leap/42.3/oss USTC:42.3:UPDATE-OSS
zypper ar -fc https://mirrors.ustc.edu.cn/opensuse/update/leap/42.3/non-oss USTC:42.3:UPDATE-NON-OSS
手動刷新軟件源：
sudo zypper ref
禁用原有軟件源：(可以先禁用所有的軟件源，再添加新的軟件源)
sudo zypper mr -da