简易计算器show1macromovdl,13movah,2int21hmovdl,10movah,2int21hendmstacksegmentstackdw1024dup(?)stackendsdatasegmentstr01db0dh,0ah,'***********menu!****************$'str02db0dh,0ah,'**THISISACACULATEPROGRAM!**$'str03db0dh,