[{"title":"( 3 个子文件 5.75MB ) 黄金价格数据集.zip","children":[{"title":"Prices.xlsx <span style='color:#111;'> 5.80MB </span>","children":null,"spread":false},{"title":"historical_pricing_methodology.pdf <span style='color:#111;'> 26.58KB </span>","children":null,"spread":false},{"title":"数据说明(黄金价格数据).docx <span style='color:#111;'> 156.74KB </span>","children":null,"spread":false}],"spread":true}]