Memcached delete 命令
delete 删除指定 key。
Key Pointsdelete 成功返回 DELETED，不存在返回 NOT_FOUND。
用法
Shell
set k 0 0 1
1
delete k
delete kOutput
STORED
DELETED
NOT_FOUNDUsually don't delete manually — let TTL expire it. Only delete explicitly when you must invalidate immediately (e.g. after a data update), and delete all related keys together or you'll read stale values.
用法
Shell
set k 0 0 1
1
delete k
delete kOutput
STORED
DELETED
NOT_FOUND缓存失效一般不用主动 delete——靠 TTL 让它自己过期最省事。需要「立即让某缓存失效」（如数据更新后）才显式 delete，并记得同时删掉关联 key，否则读到旧值。