缓存策略实现LFU算法/实现内存缓存自动Flush数据到磁盘

go.sum

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@@ -85,6 +87,8 @@ github.com/iwind/gosock v0.0.0-20210722083328-12b2d66abec3/go.mod h1:H5Q7SXwbx3a
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@@ -96,12 +100,18 @@ github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
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