ruby安装参考博客:https://blog.csdn.net/yelllowcong/article/details/78362370 (Redis之集群redis-trib.rb环境的搭建-yellowcong) vi /etc/profile 修改环境变量,添加红色部分: for i in /etc/profile.d/*.sh /etc/profile.d/sh.local ; do if [ -r "$i" ]; then if [ "${-#*i}&
Python的安装.环境配置及IDE推荐 官网:https://www.python.org/ 版本:2.x 和 3.x 差别较大:python3是不向下兼容:版本区别可参考网官网介绍 至于选择 Python 2 还是 3,Which version you ought to use is mostly dependent on what you want to get done 参考原文:http://justcoding.iteye.com/blog/882794 Python2.x好在哪?