test.c

socket编程

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

main()
{
FILE *fp;
fp=fopen("test.txt","w+t");
fprintf(fp," fprintf:hello\nworld"); 
fputs(" fputs:hello\nworld",fp);     

fclose(fp);

fp=fopen("test.bin","w+b");
fprintf(fp," fprintf:hello\nworld");
fputs(" fputs:hello\nworld",fp);     

fclose(fp);



}