esTc 设计中 三输入与门 ENTITY and3 IS pOrt(a, b, c: IN BIT g: OUT BIT); END and 3 ARCHitECtURE arch of and3 IS BEGIN g(= a and b AND C; End arch:设计中心 三输入与门 ENTITY and3 IS PORT (a,b,c : IN BIT ； q : OUT BIT) ； END and3 ； ARCHITECTURE arch OF and3 IS BEGIN q <= a AND b AND c； END arch；