打开文件-句柄方式

;文件句柄方式打开文件
code segment
assume cs:code
main proc far
jmp start
filename db 'e:/1.txt',0
success db 'ok...',0dh,0ah,24h
faile db 'error...',0d,0ah,24h

start:
mov ax,code
mov ds, ax
push ds;

mov ax,3d00h
mov dx,offset filename
int 21h

jb error

mov bx,ax
mov dx,offset success

mov ah,09h
int 21h

jmp exit
error:

mov dx,offset faile
mov ah,09h
int 21h
exit:
mov ah,3eh
int 21h
mov ah,4ch
int 21h
main endp
code ends
end main