The Expires entity header field gives the date and time after which the response is considered stale.

Expires头部字段提供一个日期和时间，响应在该日期和时间后被认为失效。

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The Expires entity header field gives the date and time after which the response is considered stale.

Expires头部字段提供一个日期和时间，响应在该日期和时间后被认为失效。

youdao