请设置全部代理后，用深度商店更新

apt我记得是需要自己设置代理的

但是在Windows下设置http代理能正常下载文件。能详解一下apt设置代理的方式吗，网上的我都试过了，不起作用。

export http_proxy=xxxxxxxx
不管用？

不管用。我能用浏览器下载软件都没问题，也能收邮件，访问：http://mirrors.yun-idc.com这些网站都没问题，就时无法用软件中心下载安装，也无法使用apt-get
我把所有的代理都配置上也不行。哪位大师赐教一下这是什么原因？

Err http://mirrors.yun-idc.com trusty InRelease
  
Err http://mirrors.yun-idc.com trusty-security InRelease
  
Err http://mirrors.yun-idc.com trusty-updates InRelease
  
Err http://mirrors.yun-idc.com trusty InRelease
  
Err http://mirrors.yun-idc.com trusty Release.gpg
  Unable to connect to mirrors.yun-idc.com:http:
Err http://mirrors.yun-idc.com trusty-security Release.gpg
  Unable to connect to mirrors.yun-idc.com:http:
Err http://mirrors.yun-idc.com trusty-updates Release.gpg
  Unable to connect to mirrors.yun-idc.com:http:
Err http://mirrors.yun-idc.com trusty Release.gpg      
  Unable to connect to mirrors.yun-idc.com:http:
Reading package lists... Done
W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/deepin/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Failed to fetch http://mirrors.yun-idc.com/deepin/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Some index files failed to download. They have been ignored, or old ones used instead.
Err http://mirrors.yun-idc.com trusty InRelease
  
Err http://mirrors.yun-idc.com trusty-security InRelease
  
Err http://mirrors.yun-idc.com trusty-updates InRelease
  
Err http://mirrors.yun-idc.com trusty InRelease
  
Err http://mirrors.yun-idc.com trusty Release.gpg
  Unable to connect to mirrors.yun-idc.com:http:
Err http://mirrors.yun-idc.com trusty-security Release.gpg
  Unable to connect to mirrors.yun-idc.com:http:
Err http://mirrors.yun-idc.com trusty-updates Release.gpg
  Unable to connect to mirrors.yun-idc.com:http:
Err http://mirrors.yun-idc.com trusty Release.gpg      
  Unable to connect to mirrors.yun-idc.com:http:
Reading package lists... Done
W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/deepin/dists ... /InRelease  

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Failed to fetch http://mirrors.yun-idc.com/ubuntu/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Failed to fetch http://mirrors.yun-idc.com/deepin/dists ... elease.gpg  Unable to connect to mirrors.yun-idc.com:http:

W: Some index files failed to download. They have been ignored, or old ones used instead.

我找到方法了，参考文章：http://www.linuxidc.com/Linux/2012-06/62936.htm
这个里面将的方式确实能行，今天测试通过。