里边有一个半加器。、一个全加器、一个触发器和一个无符号4乘4的乘法器程序，可以完成4位无符号数相乘-Inside there is a half adder. , A full adder, a flip-flop, and an unsigned 4 by 4 multiplier process can be completed by multiplying the number of 4-bit unsigned