;在10字节字符串中,搜索一个特定的字符" "(空格符),若有则在
;CRT上显示"Yes",否则显示"No".
data segment
h1 db 'AbCdefghij'
h2 db 'Yes$'
h3 db 'No$'
data ends
stack segment stack
db 100 dup(?)
stack ends
code segment
assume cs:code,ds:data,ss:stack
start: mov ax,data
       mov ds,ax
       mov es,ax
       lea di,h1
       mov al,' '
       mov cx,10
       repnz scasb
       jne x1
       mov dx,offset h2
       mov ah,9
       int 21h
       jmp x2
x1:    mov dx,offset h3
       mov ah,9
       int 21h
x2:    mov ah,4ch
       int 21h
code   ends
       end start