客户端预定义talk函数响应来自服务器端的消息，服务器端用application.broadcastMsg来广播客户端用户的someoneTalk。换句话说，客户端的someoneTalk实际上是触发了服务器端的application.broadcastMsg，同时再回调客户端预定义的talk函数并显示消息，便搭成了聊天室。
服务器端代码如下：
function broadcast (msg) { //trace(msg); application.broadcastMsg(’talk’, msg); }
客户端代码如下：
_nc = new NetConnection();
_nc.talk = function(msg) { msg_txt.text += msg + ‘\n’; };
_nc.connect(’rtmp://x/chat’);
talk_btn.onRelease = function() {
_nc.call(’someoneTalk’, null, name_txt.text, send_txt.text);
}
onKeyDown = function () {
if(Key.isDown(Key.ENTER)){ _nc.call(’someoneTalk’, null, name_txt.text, send_txt.text);
}
}
Key.addListener(this);
application.onConnect = function (client) { this.acceptConnection(client);
broadcast(’__ ‘ + client.ip + ‘ 进来了 __’);
}
application.onDisconnect = function (client) {
broadcast(’__ ‘ + client.ip + ‘ 出去了 __’);
}
Client.prototype.someoneTalk = function (n, w) {
broadcast(n + ‘(’ + this.ip + ‘) 说道: ‘ + w);
}
友情提示：
也可以用SharedObject的send方法向所有订阅此so的客户端发送消息以达到聊天的效果，但她无法有效地将当前聊天者的ip地址等信息广播出去。我已经试过了，谁要有兴趣的话也不妨试一试。