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}&
一.JDK下载 jdk有多个版本: java se开发包:Java SE Development Kit 8u25 ,必须的配置Java开发环境的.java se开发包+示例:Java SE Development Kit 8u25 Demos and Samples Downloads javaFX开发包和示例:JavaFX Demos and Samples Downloads ---------------------------------------------------------