简单列表和树列表,查询列表和输入列表。
甚至使用Scheme编写的程序也是解析树的列表,类似于前面所见的那些解析树列表。
Even the programs written in Scheme are merely lists that happen to also be parse trees, like the ones you played with previously.
可以用它显示树、列表和表格,用户和脚本可以更新这些界面元素。
It's intended for trees, lists, and tables that can be updated by both the user and scripts.
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