[{"title":"( 152 个子文件 34.92MB ) 信号吴大正第四版电子教案","children":[{"title":"§6.4 z域分析.ppt <span style='color:#111;'> 505.00KB </span>","children":null,"spread":false},{"title":"§6.3 逆z变换.ppt <span style='color:#111;'> 385.50KB </span>","children":null,"spread":false},{"title":"§6.2 z变换性质.ppt <span style='color:#111;'> 792.50KB </span>","children":null,"spread":false},{"title":"§6.1 z变换.ppt <span style='color:#111;'> 341.00KB </span>","children":null,"spread":false},{"title":"§4.2 傅里叶级数.ppt <span style='color:#111;'> 399.50KB </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多,未全部展示</span>","children":null,"spread":false}],"spread":true}]