不是哦  我都通过拉的  

DATA SEGMENT
X DB ?
Y DB ?
S DB ?,?
mess1 db "Input x=(0 quit)","$"
mess3 db 'Input y=','$'
mess2 db 'x+y=$'
DATA ENDS
stack segment para stack 'stack'
dw 100 dup(?)
stack ends
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,ss:stack
START: MOV AX,DATA
MOV DS,AX
l1: lea dx,mess1
mov ah,9
int 21h
MOV AH,1
INT 21H
cmp al,'0'
jl exit
cmp al,'9'
ja exit
je l2
MOV X,AL
call cr_lf
lea dx,mess3
mov ah,9
int 21h
MOV AH,1
INT 21H
MOV Y,AL
MOV AL,X
AND AL,0FH
MOV BL,Y
AND BL,0FH
ADD AL,BL
cbw
mov bl,10
div bl
or al,30h
mov s,al
or ah,30h
mov [s+1],ah
call cr_lf
mov dx,offset mess2
mov ah,9
int 21h
MOV AH,2
MOV DL,s
INT 21H
mov ah,2
mov dl,[s+1]
int 21h
call cr_lf
jmp l1
exit : mov ah,61h
int 21h
jmp l1
l2: MOV AH,4CH
INT 21H
cr_lf proc
push ax
push dx
mov ah,2
mov dl,0ah
int 21h
mov ah,2
mov dl,0dh
int 21h
pop dx
pop ax
ret
cr_lf endp
CODE ENDS
END START

程序通过了，谢谢啦！
不过还有2处得帮忙改改：1）是不发出警报声啊？2）是只对X进行出错判断，没对Y进行出错判断啊？

警报应该要发 只是声音很小 我记得是我们老师说的
在输入y 那里一样的加那个就行拉

[此贴子已经被作者于2007-5-5 23:30:26编辑过]

我一会得下了，能留一下你的QQ吗？我把你加上，有问题好问啊！

312544154

DATA SEGMENT
X DB ?
Y DB ?
S DB ?,?
mess1 db "Input x=(0 quit)","$"
mess3 db 'Input y=','$'
mess2 db 'x+y=$'
DATA ENDS
stack segment para stack 'stack'
dw 100 dup(?)
stack ends
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,ss:stack
START: MOV AX,DATA
MOV DS,AX
l1: lea dx,mess1
mov ah,9
int 21h
MOV AH,1
INT 21H
cmp al,'0'
jl exit
cmp al,'9'
ja exit
je l2
MOV X,AL
call cr_lf
lea dx,mess3
l4: mov ah,9
int 21h
MOV AH,1
INT 21H
cmp al,'0'
jl l3
cmp al,'9'
ja l3
je l2
MOV Y,AL
MOV AL,X
AND AL,0FH
MOV BL,Y
AND BL,0FH
ADD AL,BL
cbw
mov bl,10
div bl
or al,30h
mov s,al
or ah,30h
mov [s+1],ah
call cr_lf
mov dx,offset mess2
mov ah,9
int 21h
MOV AH,2
MOV DL,s
INT 21H
mov ah,2
mov dl,[s+1]
int 21h
call cr_lf
jmp l1
exit : mov ah,61h
int 21h
jmp l1
l3: mov ah,61h
int 21h
jmp l4
l2: MOV AH,4CH
INT 21H

cr_lf proc
push ax
push dx
mov ah,2
mov dl,0ah
int 21h
mov ah,2
mov dl,0dh
int 21h
pop dx
pop ax
ret
cr_lf endp
CODE ENDS
END START
改好拉

又有新问题了，原先“X=0”的话就会退出程序，现在不能实现了！

不好意思 我真的有点
DATA SEGMENT
X DB ?
Y DB ?
S DB ?,?
mess1 db "Input x=(0 quit)","$"
mess3 db 'Input y=','$'
mess2 db 'x+y=$'
DATA ENDS
stack segment para stack 'stack'
dw 100 dup(?)
stack ends
CODE SEGMENT
ASSUME CS:CODE,DS:DATA,ss:stack
START: MOV AX,DATA
MOV DS,AX
l1: lea dx,mess1
mov ah,9
int 21h
MOV AH,1
INT 21H
cmp al,'0'
jl exit
cmp al,'9'
ja exit
cmp al,'0'
je l2
MOV X,AL
call cr_lf
lea dx,mess3
l4: mov ah,9
int 21h
MOV AH,1
INT 21H
cmp al,'0'
jl l3
cmp al,'9'
ja l3
MOV Y,AL
MOV AL,X
AND AL,0FH
MOV BL,Y
AND BL,0FH
ADD AL,BL
cbw
mov bl,10
div bl
or al,30h
mov s,al
or ah,30h
mov [s+1],ah
call cr_lf
mov dx,offset mess2
mov ah,9
int 21h
MOV AH,2
MOV DL,s
INT 21H
mov ah,2
mov dl,[s+1]
int 21h
call cr_lf
jmp l1
exit : mov ah,61h
int 21h
jmp l1
l3: mov ah,61h
int 21h
jmp l4
l2: MOV AH,4CH
INT 21H

cr_lf proc
push ax
push dx
mov ah,2
mov dl,0ah
int 21h
mov ah,2
mov dl,0dh
int 21h
pop dx
pop ax
ret
cr_lf endp
CODE ENDS
END START

[此贴子已经被作者于2007-5-5 23:55:48编辑过]

这次一定没拉