[{"title":"( 4 个子文件 568KB ) 电动车跷跷板-2007年电赛国赛赛题.rar","children":[{"title":"2007年","children":[{"title":"F题--电动车跷跷板","children":[{"title":"3. 程序","children":[{"title":"小车源程序工程.rar <span style='color:#111;'> 108.53KB </span>","children":null,"spread":false}],"spread":true},{"title":"4. 资料","children":[{"title":"国赛论文.pdf <span style='color:#111;'> 448.51KB </span>","children":null,"spread":false}],"spread":true},{"title":"2. 电路","children":[{"title":"car_bord.rar <span style='color:#111;'> 7.59KB </span>","children":null,"spread":false}],"spread":true},{"title":"1. F电动车跷跷板.pdf <span style='color:#111;'> 162.11KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]