为什么socket老是connect被拒绝,异常10061

为什么socket老是connect被拒绝,错误10061?
serverAddr.sin_family   =   AF_INET;
serverAddr.sin_port   =   80;        
serverAddr.sin_addr.s_addr   =   inet_addr(   "61.152.234.76 "   );//sohu的ip
if(connect(   m_socket,   (   SOCKADDR   *   )   &serverAddr,   sizeof(   serverAddr   ))   ==   0   ){
}else{
wsprintf(   buff,   "连接失败errcode:   %d\n ",   WSAGetLastError()   );
mbox(   buff   );
return   false;
}

每次都提示 "连接失败errcode:   10061 ",我查了一下10061是被拒绝,为什么连接所有网站都这样呢,   sina,163也都是被拒绝

------解决方案--------------------
serverAddr.sin_port =htons(80);