[{"title":"( 6 个子文件 13.84MB ) 哈工大 电子信息工程 数字信号处理课件","children":[{"title":"数字图像处理课件","children":[{"title":"2009 第三章.pdf <span style='color:#111;'> 1.53MB </span>","children":null,"spread":false},{"title":"2009 第一章.pdf <span style='color:#111;'> 932.65KB </span>","children":null,"spread":false},{"title":"2009 第四章.pdf <span style='color:#111;'> 2.01MB </span>","children":null,"spread":false},{"title":"2009 第五章.pdf <span style='color:#111;'> 4.08MB </span>","children":null,"spread":false},{"title":"2009 第六章.pdf <span style='color:#111;'> 4.93MB </span>","children":null,"spread":false},{"title":"2009 第二章.pdf <span style='color:#111;'> 1.53MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]