main()
{ FILE *fp;
char filename[20],go;
clrscr();
scanf("Please enter your filename:%s",filename);
if (fp=fopen(filename,"a"))
{
fprintf(fp,"char"); /* tips : replace "char" with what you want*/
/* (a variant?/a string? up to you !) */
do
{
fprintf(fp,"\n");
fprintf(fp,"char");
go=getch();
}
while (go==ucase("y"))
fclose(fp); /* close file,write buffer data to disk */
}
else
{
printf("File open error! program exit...\n");
sleep(1); /* delay 1 second */
exit(0);
}