[{"title":"(6个子文件3.78MB)线性系统理论课件清华哈工大pdf","children":[{"title":"线性系统理论","children":[{"title":"线性系统理论(第一章).pdf <span style='color:#111;'>696.84KB</span>","children":null,"spread":false},{"title":"线性系统理论(绪论).pdf <span style='color:#111;'>299.73KB</span>","children":null,"spread":false},{"title":"线性系统理论(第二章).pdf <span style='color:#111;'>402.52KB</span>","children":null,"spread":false},{"title":"线性系统理论(第五章).pdf <span style='color:#111;'>1.45MB</span>","children":null,"spread":false},{"title":"线性系统理论(第三章).pdf <span style='color:#111;'>928.05KB</span>","children":null,"spread":false},{"title":"线性系统理论(第四章).pdf <span style='color:#111;'>521.42KB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]