如何在IDEA2017 上打开多个项目
Ctrl + Alt + S 进入setting --> System Settings 找到 "Project Opening"选项 选择第三项 "Comfirm window to open project in"
文章来自：http://www.cnblogs.com/5icuke/p/7058491.html
Ctrl + Alt + S 进入setting --> System Settings 找到 "Project Opening"选项 选择第三项 "Comfirm window to open project in"