鼠标单击逻辑输入切换 0|1 状态
https://cc.xiaogd.net/?startCircuitLink=https://book.xiaogd.net/code-hlchs-examples/assets/circuit/code-hlchs-ch12-08-8-bit-adder-internal.txt
https://cc.xiaogd.net/?startCircuitLink=https://book.xiaogd.net/code-hlchs-examples/assets/circuit/code-hlchs-ch12-09-8-bit-adder.txt