4選1MUX

調用門原件實現：code module exe(out,in1,in2,in3,in4,s0,s1); input in1,in2,in3,in4,s0,s1; output out; wire s0_n,s1_n,w,x,y,z; not (s0_n,s),(s1_n,s1); and(w,in1,s0_n,s1_n),(x,in2,s0_n,s1), (y,in3,s0,s1_n),(z

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