代码如下：assume cs:code
                        code segment
                    start:mov ax,199
                            mov bx,10
                            div bx
                            div bx
                            mov ax,4c00h
                            int 21h
                      code ends
                  end start
运行第一个div时还能得到预想结结果：ax=19,dx=9
而运行第二个div时得到的结果很怪异：ax=e668h,dx=3h   大神帮忙解释下是为什么哦。