c语言实现最简单的写文件操作

#include "stdafx.h"

#include "stdio.h"

#include "stdlib.h"

void main()

{

 FILE *fp;

 char ch,filename[10];

 printf("intput filename:");

 scanf("%s",filename);

 if((fp=fopen(filename,"w"))==NULL)

 {

  printf("cannot open file\n");

  exit(0);

 }

 printf("intput content:\n");

  ch=getchar();

 while(ch!='#')

 {

   

   fputc(ch,fp);

   ch=getchar();

 }

 fputc(ch,fp);

 printf("intput file over\n");

 fclose(fp);

}