教程引用:http://www.runoob.com/lua/lua-environment.html
1. curl -R -O http://www.lua.org/ftp/lua-5.3.0.tar.gz (这里可以先看先最新版本是多少，再进行下载)
2. tar zxf lua-5.3.0.tar.gz
3. cd lua-5.3.0
4. make macosx test
5. sudo make install
这里说明一下第5步，网上很多安装教程都没有说用sudo 而是直接 make install，导致没有权限，安装失败：
cd src && mkdir -p /usr/local/bin /usr/local/include /usr/local/lib /usr/local/man/man1 /usr/local/share/lua/5.3 /usr/local/lib/lua/5.3
mkdir: /usr/local/include: Permission denied
mkdir: /usr/local/man/man1: Permission denied
mkdir: /usr/local/share/lua/5.3: Permission denied
mkdir: /usr/local/lib/lua/5.3: Permission denied
make: *** [install] Error 1