[{"title":"( 7 个子文件 6.82MB ) 复旦大学《电动力学导论》讲稿","children":[{"title":"复旦大学《电动力学导论》讲稿","children":[{"title":"chap6.pdf <span style='color:#111;'> 753.34KB </span>","children":null,"spread":false},{"title":"chap2.pdf <span style='color:#111;'> 2.83MB </span>","children":null,"spread":false},{"title":"chap7.pdf <span style='color:#111;'> 1.09MB </span>","children":null,"spread":false},{"title":"chap4.pdf <span style='color:#111;'> 1.36MB </span>","children":null,"spread":false},{"title":"chap3.pdf <span style='color:#111;'> 1.19MB </span>","children":null,"spread":false},{"title":"chap1.pdf <span style='color:#111;'> 1.36MB </span>","children":null,"spread":false},{"title":"chap5.pdf <span style='color:#111;'> 1.41MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]