[{"title":"(2个子文件49.34MB)数据挖掘导论(高清完整版)","children":[{"title":"数据挖掘导论(高清完整版)","children":[{"title":"新建文本文档.txt <span style='color:#111;'>0B</span>","children":null,"spread":false},{"title":"数据挖掘导论.pdf <span style='color:#111;'>50.26MB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]