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wfile.asm
Package: cipanduxie.rar [view]
Upload User: hhhhly
Upload Date: 2021-12-31
Package Size: 2k
Code Size: 2k
Category:
Disk Tools
Development Platform:
DOS
- data segment
- file db 'c:masml.txt' , 0 ;创建文件的文件名
- buf db 'this is a test !' ;写到文件中去的内容
- error_message db 0ah , 'error !' , '$' ;出错时的提示
- message db 0ah , 'ok !$' ;操作成功后的提示
- handle dw ? ;保存文件号
- data ends
- code segment
- assume cs:code , ds:data
- start:
- mov ax , data
- mov ds , ax
- mov dx , offset file
- mov cx , 0
- mov ah , 3ch
- int 21h ;创建文件,若磁盘上原有此文件,则覆盖
- jc error ;创建出错,转error处
- mov handle , ax ;保存文件号
- mov bx , ax
- mov cx , 16
- mov dx , offset buf
- mov ah , 40h
- int 21h ;向文件中写入16个字节内容
- jc error ;写出错,转error处
- mov bx , handle
- mov ah , 3eh
- int 21h ;关闭文件
- jc error ;关闭文件出错,转error处
- mov dx , offset message
- mov ah , 9
- int 21h ;操作成功后显示提示
- jmp end1
- error:
- mov dx , offset error_message
- mov ah , 9
- int 21h ;显示错误提示`
- end1:
- mov ah , 4ch
- int 21h
- code ends
- end start