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                # 5種數據類型 -hash哈希類型數據,賦值,獲取 ``` <pre class="calibre14">``` hset car name bm hset car price <span class="token3">500</span> hmset car name bm price <span class="token3">500</span> 一次多條數據 hget car name hmget car name price 多條 hgetall car 獲取全部鍵值 hexists car price 判斷字段是否存在 存在返回<span class="token3">1</span> 鍵不存在也返回<span class="token3">0</span> car是鍵 hsetnx car id <span class="token3">456</span> 賦值<span class="token2">,</span>id存在將不會改變值 hincrby car id <span class="token3">1</span> 增加數字可以是任何正負數<span class="token2">,</span>返回數字 hdel car id 刪除字段<span class="token2">,</span>支持多個返回刪除個數 hkeys car 獲取鍵的字段名 hvals car 獲取值 hlen car 返回字段數量 ``` ``` - list列表類型 ``` <pre class="calibre14">``` lpush id <span class="token3">1</span> 左邊增加元素<span class="token2">,</span>支持多個值 rpush id <span class="token3">1</span> <span class="token3">34</span> 右邊增加元素<span class="token2">,</span>返回長度<span class="token2">,</span>支持多個值 lpop id 左邊刪除元素<span class="token3">1</span>個<span class="token2">,</span>返回元素值 rpop id 右邊刪除元素<span class="token3">1</span>個 brpop list1 list2 <span class="token3">0</span> 阻塞模式用于消息隊列 blpop類似 llen id 返回元素個數 lrange id <span class="token3">0</span> <span class="token3">2</span> 返回截取值<span class="token2">,</span>包含索引兩端<span class="token2">,</span><span class="token">-</span><span class="token3">1</span>表示最右端` lrange id <span class="token3">0</span> <span class="token">-</span><span class="token3">1</span>`為全部值 lrem id <span class="token3">1</span> <span class="token3">9</span> 從左邊刪除<span class="token3">1</span>個元素值為<span class="token3">9</span>的值<span class="token2">,</span>個數<span class="token3">1</span><span class="token2">;</span> lrem id <span class="token">-</span><span class="token3">2</span> <span class="token3">9</span> 從右邊刪除<span class="token3">2</span>個 lrem id <span class="token3">0</span> <span class="token3">9</span>刪除全部 lindex id <span class="token3">0</span> 返回索引是<span class="token3">0</span>的元素值 <span class="token">-</span><span class="token3">1</span><span class="token2">;</span> lindex id <span class="token">-</span><span class="token3">1</span> 表示右邊第一個 lset id <span class="token3">0</span> <span class="token3">999</span> 設置索引<span class="token3">0</span>元素值<span class="token2">,</span>索引可以負數 ltrim id <span class="token3">0</span> <span class="token">-</span><span class="token3">1</span> 刪除指定索引元素 和lrange類似 linsert id before <span class="token3">999</span> <span class="token3">222</span> 從左向右查找<span class="token3">999</span> 在之前插入<span class="token3">222</span><span class="token2">,</span>返回元素個數<span class="token2">,</span>沒有找到返回<span class="token">-</span><span class="token3">1</span><span class="token2">,</span>不插入 linsert id after <span class="token3">999</span> <span class="token3">0</span> 在之后插入<span class="token3">0</span> rpoplpush id id1 從id隊尾取出元素<span class="token3">1</span>個插入id1隊首<span class="token2">,</span>返回這個元素值 ``` ``` - set 集合類型,元素沒有順序,元素唯一 ``` <pre class="calibre14">``` sadd id a b <span class="token3">1</span> 添加元素a b <span class="token3">1</span>返回元素個數<span class="token2">,</span>有相同元素不會插入<span class="token2">,</span> smembers id 獲取集合值<span class="token2">,</span>返回所有元素 sismember id <span class="token3">24</span> 判斷是否在id中<span class="token2">,</span>是返回<span class="token3">1</span>否則<span class="token3">0</span> sdiff id id1 差集屬于id<span class="token2">,</span>不屬于id1<span class="token2">,</span> sdiff id1 id反之<span class="token2">{</span>B<span class="token">-</span>A<span class="token2">}</span>集合<span class="token2">;</span>支持多個差集 sdiff A B C sinter id id1 交集既屬于id也屬于id1<span class="token2">,</span>支持三個以上 sunion id id1 并集支持三個以上 scard id 元素數量 sdiffstore ids id id1 存儲結果 sinterstore ids id id1 sunionstore ids id id1 srandmember id <span class="token3">3</span> 獲取<span class="token3">3</span>個隨機元素 負數會獲得相同的<span class="token2">,</span>也可能不同的 spop id 隨機刪除一個<span class="token2">,</span>返回這個元素<span class="token2">,</span>返回nil就是沒有元素 ``` ``` - zset 有序集合,支持正負數 0浮點數 ``` <pre class="calibre16">``` zadd id <span class="token3">10</span> tom <span class="token3">20</span> ma <span class="token3">90</span> liu 添加數據 zadd id <span class="token3">20</span> tom 修改數據 zscore id tom 獲取元素分數 zrange id <span class="token3">0</span> <span class="token3">4</span> 排名從小到大<span class="token2">,</span>索引<span class="token3">0</span><span class="token">-</span><span class="token3">4</span>的元素 zrange id <span class="token3">0</span> <span class="token">-</span><span class="token3">1</span> 全部元素 <span class="token">-</span><span class="token3">1</span>表示最后一個元素 zrange id <span class="token3">0</span> <span class="token">-</span><span class="token3">1</span> withscores 同時獲得元素分數 zrevrange id <span class="token3">0</span> <span class="token">-</span><span class="token3">1</span> 從大到小<span class="token2">,</span>類似上邊 zrangebyscore id <span class="token3">1</span> <span class="token3">20</span> 返回<span class="token3">1</span>到<span class="token3">20</span>的key<span class="token2">,</span>從小到大<span class="token2">,</span>不包含用 <span class="token2">(</span><span class="token3">20</span> 表示 zrangebyscore id <span class="token3">1</span> <span class="token">+</span>inf <span class="token3">1</span>到正無群大<span class="token2">,</span><span class="token">-</span>inf 負的無群大 zrangebyscore id <span class="token3">1</span> <span class="token">+</span>inf withscores 返回帶分數 zrangebyscore id <span class="token3">1</span> <span class="token">+</span>inf limit <span class="token3">0</span> <span class="token3">2</span> limit表示從<span class="token3">0</span>索引開始取兩個 zrevrangebyscore id <span class="token3">100</span> <span class="token3">0</span> limit <span class="token3">0</span> <span class="token3">2</span> 相反<span class="token2">,</span>從后到前<span class="token2">,</span>從大到小 zincrby id <span class="token3">4</span> id id增加<span class="token3">4</span>分<span class="token2">,</span>如果不存在創建<span class="token2">,</span>存在增加<span class="token2">,</span>支持負數 zcard id 元素數量 zcount id <span class="token2">(</span><span class="token3">0</span> <span class="token3">90</span> 返回<span class="token3">0</span>到<span class="token3">90</span>元素數量<span class="token2">,</span>不含<span class="token3">0</span><span class="token2">,</span><span class="token">+</span>inf <span class="token">-</span>inf正負無窮大小 zrem id he tom 刪除元素支持一個或多個<span class="token2">,</span>返回刪除數量 zremRangeByRank id <span class="token3">0</span> <span class="token3">1</span> 分數按照從小到大排序<span class="token2">,</span>刪除<span class="token3">0</span><span class="token2">,</span><span class="token3">1</span>元素 zremRangeByScore id <span class="token3">0</span> <span class="token2">(</span><span class="token3">30</span> 刪除<span class="token3">0</span>到<span class="token3">30</span>范圍內元素<span class="token2">,</span>返回數量 zrank id dudu 獲得元素排名分數從小到大 zrevrank id dudu 分數從大到小 zInterStore ids <span class="token3">2</span> id id1 求id id1 交集<span class="token2">,</span>存儲到ids鍵<span class="token2">,</span><span class="token3">2</span>表示<span class="token3">2</span>個的交集<span class="token2">,</span>返回交集個數 zInterStore ids <span class="token3">2</span> id id1 aggreGate sum<span class="token">|</span>min<span class="token">|</span>max 默認是sum表示交集分數之和<span class="token2">,</span>min最小<span class="token2">,</span>max最大 zUnionStore ids <span class="token3">2</span> id id1 求并集類似 ``` ```
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