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ccc90d9c8dbcb78bed10d67a81d1ec7de7ba9c41
NoteBook
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计算机网络
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6. 轮询 vs 长轮询.md
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Update: 计算机网络
2025-09-29 19:25:22 +08:00
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轮询 vs 长轮询
轮询
Polling
客户端定期向服务器发送请求,查询是否有新数据
弊端
增加冗余网络请求
长轮询
Long Pollong
客户端请求后,服务端保持连接
有新数据后返回响应
客户端继续发起新请求
好处
高效
接近实时通讯
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