哪一个国家拥有800多种语言?

中国
在我家那基本上一个村子一个官方语言

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define PORT 10000 // port we’re listening on
int main(void)
{
fd_set master; // master file descriptor list
fd_set read_fds; // temp file descriptor list for select()
struct sockaddr_in myaddr; // server address
struct sockaddr_in remoteaddr; // client address
int fdmax; // maximum file descriptor number
int listener; // listening socket descriptor
int newfd; // newly accept()ed socket descriptor
char buf[256]; // buffer for client data
int nbytes;
int yes=1; // for setsockopt() SO_REUSEADDR, below
socklen_t addrlen;
int i, j;
FD_ZERO(&master); // clear the master and temp sets