data segment
x db -1
y db 2
z db 5
min db ?
data ends
code segment
assume ds:data,cs:code
start:
mov ax,data
mov ds,ax
mov al,x
cmp al,y
jnb next
mov al,y
next:
cmp al,z
jnb tj
mov al,z
tj:
mov min,al
mov ah,4ch
int 21h
code ends
end start
补充:
你再试试,我运行没问题呀。