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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # LLEN **LLEN key** 返回列表 `key` 的長度。 如果 `key` 不存在,則 `key` 被解釋為一個空列表,返回 `0` . 如果 `key` 不是列表類型,返回一個錯誤。 **可用版本:** &gt;= 1.0.0 **時間復雜度:** O(1) **返回值:** 列表 `key` 的長度。 ``` # 空列表 redis> LLEN job (integer) 0 # 非空列表 redis> LPUSH job "cook food" (integer) 1 redis> LPUSH job "have lunch" (integer) 2 redis> LLEN job (integer) 2 ```
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