:edited for code tags:Code:
#include <stdio.h>
#include <stslib.h>
int main (void){
char ch[20];
FILE *fp;
if ((fp=fopen("./test.txt","w+"))==NULL)
{
fprintf(stderr,"cant open the fil!\n");
exit(1);
}
fprintf(fp,"text\n text\n");
while (ch != EOF)
{
fgets(ch,sizeof(ch),fp);
fprintf(stderr,"%s",ch);
}