[{"title":"( 7 个子文件 778KB ) 北京市主要道路(国道)shp文件","children":[{"title":"国道.prj <span style='color:#111;'> 411B </span>","children":null,"spread":false},{"title":"国道.dbf <span style='color:#111;'> 22.17KB </span>","children":null,"spread":false},{"title":"国道.sbn <span style='color:#111;'> 1.87KB </span>","children":null,"spread":false},{"title":"国道.xml <span style='color:#111;'> 2.38KB </span>","children":null,"spread":false},{"title":"国道.shp <span style='color:#111;'> 1.02MB </span>","children":null,"spread":false},{"title":"国道.shx <span style='color:#111;'> 1.48KB </span>","children":null,"spread":false},{"title":"国道.sbx <span style='color:#111;'> 268B </span>","children":null,"spread":false}],"spread":true}]