assume cs:code,ds:data data segmentdb welcome to masm! data endscode segmentstart:mov ax,datamov ds,axmov ax,0B800hmov es,axsub bx,bx mov cx,3s:mov dx,cxsub si,simov di,1824mov cx,16s1: mov al,simov es:bx+di,al inc siadd di,2loop s1add bx,0a0hmov cx,dxloop ssub di,dimov cx,16s2:mov byte ptr es:di+1825,2h mov byte ptr es:di+1985,24hmov byte ptr es:di+2145,71hadd di,2loop s2 mov ax,4c00hint 21hcode endsend start为了便于查看输出是否在屏幕正中间可加入如下指令： sub bx,bx mov al,61h mov cx,11 s3:mov byte ptr es:bx,al inc al add bx,0a0h loop s3 mov cx,32 s4: mov byte ptr es:bx,al add bx,2 loop s4