error while loading shared libraries: libevent-2.1.so.6 的解决办法

执行 memcached 启动命令时，报错，提示：error while loading shared libraries: libevent-2.1.so.6: cannot open shared object file: No such file or directory 查看 memcached 命令缺失什么库 ldd /usr/local/memcached/bin/memcached

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