汇编-遍历修改

2. 菜单首字母改为大写

 1 assume cs:codesg,ds:datasg
 2
 3 datasg segment
 4         db ‘1.file    ‘
 5         db ‘2.edit    ‘
 6         db ‘3.search  ‘
 7         db ‘4.view    ‘
 8         db ‘5.options ‘
 9         db ‘6.help    ‘
10 datasg ends
11
12 codesg segment
13   start:mov ax,datasg
14         mov ds,ax
15         mov bx,0
16         mov cx,6
17       s:mov al,[bx+2]
18         and al,11011111b
19         mov [bx+2],al
20         add bx,10
21         loop s
22         nop
23 codesg ends
24
25 end start