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HomeBackend DevelopmentPHP Tutorial 网页的即时是如何做的,有什么好思路没

网页的即时是怎么做的,有什么好思路没?
如题

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即时 ? 是计时吧。
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拼音输入法是罪魁祸首.
js.
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莫非楼主是想判断用户在这个页面停留时间?
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ajax,无刷新技术,但是还是会有延时,看你做什么了,只是更新少数内容,无所谓。如果是做聊天等,需要比较及时应答的,哪调用的频率就要高,还有服务器速度要跟上。
------解决方案--------------------

探讨

ajax,无刷新技术,但是还是会有延时,看你做什么了,只是更新少数内容,无所谓。如果是做聊天等,需要比较及时应答的,哪调用的频率就要高,还有服务器速度要跟上。

------解决方案--------------------
去网络上搜索:ajax,轮询,Comet 
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