又有问题了！！ - 编程论坛

DATA segment
data1 db 1h,2h,3h
DATA ends

code segment
     mov ax,data
     mov ds,ax
     mov si,0
     mov ax,0000h
     mov al,data1[si]
     adc al,data1[si+1]
     adc al,data1[si+2]
code ends
     end
为什么al里不是1+2+3的和呢？