2.asm

里面有六个汇编程序

data    segment
	st1 db "Input some numbers(<100B):$"
	st2 db "The output is:$"
        buf1 db 100,?,100 dup('$')
	buf2 db 100 dup('$')
data    ends
code    segment
        assume cs:code,ds:data
start:  mov ax,data
	mov ds,ax	
	mov si,2
	mov di,0
	lea dx,st1
	mov ah,9
	int 21h
	lea dx,buf1
	mov ah,0ah
	int 21h 
A1:	mov al,buf1[si]
	cmp al,24h
	je A3
	cmp al,20h
	je A2
	mov buf2[di],al
	inc di
A2:	inc si
	jmp A1	
A3:	mov dl,0ah
	mov ah,2
	int 21h
    	mov dl,0dh
   	mov ah,2
    	int 21h
	lea dx,st2
	mov ah,9
	int 21h
	lea dx,buf2
	mov ah,9
	int 21h   
	mov ax,4c00h
	int 21h	
code ends
end start