如演示出现异常, 可点右侧面板的重置按钮重置
此处 R 和 S 都使用的是按钮开关
点击 R 可让 Q 熄灭
点击 S 可让 Q 亮起
https://cc.xiaogd.net/?startCircuitLink=https://book.xiaogd.net/cyjsjdmw-examples/assets/circuit/cyjsjdmw-ch07-08-nor-gate-feedback-circuit.txt
原图
鼠标单击开关切换开合状态
https://cc.xiaogd.net/?startCircuitLink=https://book.xiaogd.net/cyjsjdmw-examples/assets/circuit/cyjsjdmw-ch07-09-r-s-flip-flop.txt
