A common implementation would be a GUI tool that has a tree on the left-hand side showing the artifact contents, with some panels on the right displaying more detail.

一个常见的实现就是GUI工具在左侧以树型结构显示工件内容，并通过一些面板在右侧显示详细信息。

youdao

Simply by clicking that link you can then log into your account; and then on the left hand side what appears is a little menu of all of your friends who are also using this tool and you can select any one of them and actually see what that person is shopping.

只需轻点鼠标便可进入自己的账户;,页面的左边有一个菜单栏,其中是你所有也在使用这个工具的朋友,你可以选中其中一个,查看ta所选择的课程。

哈佛公开课 - 计算机科学课程节选