[{"title":"( 3 个子文件 14.88MB ) kaggle mnist 训练和测试csv文件","children":[{"title":"test.csv <span style='color:#111;'> 48.75MB </span>","children":null,"spread":false},{"title":"train.csv <span style='color:#111;'> 73.22MB </span>","children":null,"spread":false},{"title":"sample_submission.csv <span style='color:#111;'> 235.26KB </span>","children":null,"spread":false}],"spread":true}]