[{"title":"( 5 个子文件 462KB ) 74LS190实现10以内、100以内十进制加/减计数器-由multisim软件电路仿真设计","children":[{"title":"74LS190实现10以内、100以内加减计数器","children":[{"title":"74LS190功能表.png <span style='color:#111;'> 38.51KB </span>","children":null,"spread":false},{"title":"74LS190实现10以内十进制加减计数器.ms14 <span style='color:#111;'> 217.75KB </span>","children":null,"spread":false},{"title":"74LS190级联实现100以内的十进制加减计数器.png <span style='color:#111;'> 73.86KB </span>","children":null,"spread":false},{"title":"74LS190级联实现100以内的十进制加减计数器.ms14 <span style='color:#111;'> 127.04KB </span>","children":null,"spread":false},{"title":"74LS190实现10以内十进制加减计数器.png <span style='color:#111;'> 80.63KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]