在centos下安装g++，如果输入 yum install g++，那么将会提示：
[root@hugo hugo]# yum install g++ Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: centos.ustc.edu.cn Setting up Install Process No package g++ available. Error: Nothing to do
因为在centos下g++安装包名字叫做：gcc-c++
所以应该输入 yum install gcc-c++，即可。
[root@hugo hugo]# yum -y install gcc-c++ Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * updates: centos.ustc.edu.cn Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package gcc-c++.x86_64 0:4.4.7-3.el6 will be installed --> Processing Dependency: libstdc++-devel = 4.4.7-3.el6 for package: gcc-c++-4.4.7-3.el6.x86_64 --> Running transaction check ---> Package libstdc++-devel.x86_64 0:4.4.7-3.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: gcc-c++ x86_64 4.4.7-3.el6 base 4.7 M Installing for dependencies: libstdc++-devel x86_64 4.4.7-3.el6 base 1.6 M Transaction Summary ================================================================================ Install 2 Package(s) Total download size: 6.3 M Installed size: 20 M Downloading Packages: (1/2): gcc-c++-4.4.7-3.el6.x86_64.rpm | 4.7 MB 00:27 (2/2): libstdc++-devel-4.4.7-3.el6.x86_64.rpm | 1.6 MB 00:08 -------------------------------------------------------------------------------- Total 178 kB/s | 6.3 MB 00:36