[汇编] 将字符串里的一个'&'字符换成空格

 ; multi-segment executable file template.

 data segment
     ; add your data here!
     pkey db "press any key...$"
     STRING  DB  'The date is FEB&03$'
 ends

 stack segment
     dw     dup()
 ends

 code segment
 start:
 ; set segment registers:
     mov ax, data
     mov ds, ax
     mov es, ax

     ; add your code here
     mov cx,
     mov si,-
     mov al,'&'

     NEXT:
         inc si
         cmp al,STRING[si]
         loopne NEXT
         je  FOUND
     FOUND:
         mov STRING[si],20H

     lea dx, STRING
     mov ah,
     int 21h        ; output string at ds:dx

     ; wait for any key....
     mov ah,
     int 21h

     mov ax, 4c00h ; exit to operating system.
     int 21h
 ends

 end start ; set entry point and stop the assembler.