23 lines
370 B
Markdown
23 lines
370 B
Markdown
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# 过期删除
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**设置过期时间**
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```sh
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expire <key> <n>
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pexpire <key> <n>
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expireat <key> <n>
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pexpireat <key> <n>
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set <key> <value> ex <n>
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set <key> <value> px <n>
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setex <key> <n> <value>
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```
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**过期删除策略**
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- 定时删除
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- 手动指定定时事件
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- 惰性删除
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- 访问时检查是否过期
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- 定期删除
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- 每隔一段时间随机取出检查
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