ubuntu PPA 更新老是不成功该怎么办

Question

ubuntu PPA 更新老是不成功该怎么办呀， 已经使用了阿里云镜像
ppa.launchpad.net
源都是通过这个网址吗，把这个网址设置为代理规则，也一样。

就是那个网络非常的慢， 从 几KB ， 到 几十B 。。。

Answer 1

What version of ubuntu?
Personally recommend to replace the source directly with the system’s own method. . .

Answer 2

I think that if you add the source from ppa.launchpad.net by yourself, it will be downloaded directly from that website. It has nothing to do with whether Alibaba or other domestic sources are used in the system settings.