[{"title":"(4个子文件13.18MB)单片机原理及应用(李建忠)","children":[{"title":"单片机原理及应用(李建忠)1","children":[{"title":"第2章.ppt <span style='color:#111;'>2.84MB</span>","children":null,"spread":false},{"title":"第1章.ppt <span style='color:#111;'>1.46MB</span>","children":null,"spread":false},{"title":"第3章.ppt <span style='color:#111;'>4.60MB</span>","children":null,"spread":false},{"title":"第4章.ppt <span style='color:#111;'>7.77MB</span>","children":null,"spread":false}],"spread":true}],"spread":true}]