[{"title":"(6个子文件3.89MB)数字电子钟硬件电路图","children":[{"title":"元器件知识","children":[{"title":"器件基础知识介绍附图片.pdf <span style='color:#111;'>860.69KB</span>","children":null,"spread":false},{"title":"电子元件基础教程.pdf <span style='color:#111;'>298.31KB</span>","children":null,"spread":false},{"title":"常用器件资料.pdf <span style='color:#111;'>299.21KB</span>","children":null,"spread":false},{"title":"常用电子元器件图片.pdf <span style='color:#111;'>1.76MB</span>","children":null,"spread":false},{"title":"电子元件基础知识.pdf <span style='color:#111;'>822.39KB</span>","children":null,"spread":false},{"title":"常用电子元器件应用要点及识别方法.pdf <span style='color:#111;'>101.19KB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]