[{"title":"( 6 个子文件 7.07MB ) 房价数据集(包含波士顿房价数据集)","children":[{"title":"广州链家二手房数据.xlsx <span style='color:#111;'> 1.84MB </span>","children":null,"spread":false},{"title":"上海链家二手房.csv <span style='color:#111;'> 27.93MB </span>","children":null,"spread":false},{"title":"课程报告.doc <span style='color:#111;'> 377.00KB </span>","children":null,"spread":false},{"title":"波士顿房价.csv <span style='color:#111;'> 40.39KB </span>","children":null,"spread":false},{"title":"波士顿","children":[{"title":"test.csv <span style='color:#111;'> 440.83KB </span>","children":null,"spread":false},{"title":"train.csv <span style='color:#111;'> 449.88KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]