麻烦各位朋友看一下这程序有何问题
assume cs:code,ds:data,es:tabledata segment
db'1975','1976','1977','1978','1979','1980','1981','1982','1983'
db'1984','1985','1986','1987','1988','1989','1990','1991','1992','1993'
db'1994','1995'
dd 16,22,382,1356,2390,8000,16000,24486,50065,97479,140417,197514
dd 345980,590827,803530,1183000,1843000,2759000,3753000,4649000,5937000
dw 3,7,9,13,28,38,130,220,476,778,1001,1442,2258,2793,4037,5635,8226
dw 11542,14430,15257,17800
data ends
table segment
db 21 dup ('year summ ne ?? ')
table ends
code segment
start:mov ax,data
mov ds,ax
mov ax,table
mov es,ax
mov bx,0
mov di,0
mov cx,21
s:mov al,
mov es:,al
mov al,
mov es:,al
mov al,
mov es:,al
mov al,
mov es:,al
mov ax,
mov dx,
mov es:,ax
mov es:,dx
add bx,4
add di,10h
loop s
mov bx,0
mov di,0
mov cx,21
s1:mov ax,
mov es:,ax
add bx,2
add di,10h
loop s1
mov di,0
mov cx,21
s2:mov ax,es:
mov dx,es:
div word ptr es:
mov es:,ax
add di,10h
loop s2
mov ax,4c00h
int 21h
code ends
end start
编译的时候说s1未定义？？？？？？
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