中标麒麟 NeoKylin 5.1 安装C++环境

中标麒麟 NeoKylin 5.1 安装C++环境

问题：系统装好后执行

yum install gcc-c++ 
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报如下错误：

已加载插件:langpacks, refresh-packagekit 没有可用软件包 gcc-g++。
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解决方法

1. 更改中标麒麟yum源

vi /etc/yum.repos.d  neokylin.repo
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修改后的仓库地址如下

[Neokylin]
name= NeoKylin 7.1

baseurl=http://download.cs2c.com.cn/neokylin/desktop/releases/7.1/$basearch/os/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-neokylin-$basearch

#additional packages that may be useful for developer,this repository may
#not have been tested as extensively as that contained in the main release.
[Neokylin-extras]
name= NeoKylin 7.1 extras
baseurl=http://download.cs2c.com.cn/neokylin/desktop/everything/7.1/$basearch/os/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-neokylin-$basearch
~                                                                     
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系统默认配置的5.1版本无法使用，所以使用7.1版本的