1.小巧，整个程序只有一个20多KB的php文件 2.高效，使用ajax技术传输数据，服务器负担较小 3.保存聊天记录到php文件(不会被下载) 4.可以设置文字样式 5.显示在线用户 6.支持发送图片 7.完全支持IE6+ ,Firefox,Opera,Safari等主流浏览器-1. Compact, the whole process is only a 20 KB php file 2. Efficient use of ajax technology to transmit data, the server load is small 3. Save chat history to php files (not downloaded) 4. You can set the text style 5. 6. support display online users to send pictures 7. fully supports IE6+, Firefox, Opera, Safari and other popular browsers