RedisClientPool 构造函数

实例化一个默认的客户端连接池对象，需要指定实例Redis对象时的IP，端口，密码信息
To instantiate a default client connection pool object, you need to specify the IP, port, and password information when the Redis object is instantiated

实例化一个默认的客户端连接池对象，需要指定实例Redis对象时的IP，端口，密码信息，以及可以指定额外的初始化操作
To instantiate a default client connection pool object, you need to specify the IP, port, and password information when the Redis object is instantiated, and you can specify additional initialization operations