[{"title":"(3个子文件37.76MB)STK最好的三份教程","children":[{"title":"STK基础教程.doc <span style='color:#111;'>29.59MB</span>","children":null,"spread":false},{"title":"STK10使用入门.pps <span style='color:#111;'>5.82MB</span>","children":null,"spread":false},{"title":"STK综合介绍.pps <span style='color:#111;'>6.59MB</span>","children":null,"spread":false}],"spread":true}]