在macbook上安装最新版的gcc

首先安装Homebrew

在终端中运行：

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

然后运行

brew install gcc

查看是否安装成功

xxxdeMacBook-Air:~ xxx$ gcc-7 --versiongcc-7 (Homebrew GCC 7.1.0) 7.1.0Copyright (C) 2017 Free Software Foundation, Inc.This is free software; see the source for copying conditions.  There is NOwarranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.