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javascript - 怎么可以准确的判断出用户下线的时间
巴扎黑
2017-04-10 14:27:56
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主要是怎么判断出用户意外下线的时间？
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伊谢尔伦
2017-04-10 14:29:56
1 floor
关键是看你怎么维护会话的，是否有心跳检测
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关键是看你怎么维护会话的，是否有心跳检测