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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
                # 111 telnet操作memcached ## telnet登錄memcached ```text telnet ip地址 端口號 telnet 127.0.0.1 11211 ``` 注意:memcached存儲數據是以鍵值對的方式存儲的 1.添加數據: * set\(設置\): * 語法: ```text set key 0(否)(是否壓縮) timeout(過期時間) value_length(字符串的長度) value ``` * 示例: ```text set username 0 60 7 abcdefg ``` * add\(添加\): * 語法: ```text add key 0(否)(是否壓縮) timeout value_length value ``` * 示例: ```text add username 0 60 7 abcdefg ``` set 和 add 的區別:add是只負責添加數據,不會去修改數據。如果添加的數據的key已經存在了,則添加失敗,如果是添加的key不存在,則添加成功。而set不同,如果memcached中不存在相同的key,則進行添加,如果存在,則替換。 2.獲取數據 * 語法: ```text get key ``` * 示例: ```text get username ``` 3.刪除數據 * 語法: ```text delete key ``` * 示例: ```text delete username ``` * flush\_all:刪除memcached中的所有鍵值對。 4.查看memcached的當前狀態 * 語法:stats ```text 'get_hists':get命令命中了多少次 'get_misses':get命令get空了幾次 'curr_items':當前'memcached'中的鍵值對的個數 'total_connections':從'memcached'開啟到現在總共的連接數 'curr_connections':當前'memcached'的連接數 ‘memcached’默認醉的連接數是1024 ``` 5.增加 ```text set age 0 120 2 > 20 incr age 2 > 22 注意:必須都是數值類型,不然會報錯 ``` 6.減少 ```text decr age 2 > 20 ```
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