RedisSubscribe 构造函数

实例化一个发布订阅类的客户端，需要指定ip地址，端口。
To instantiate a publish and subscribe client, you need to specify the ip address and port.

实例化一个发布订阅类的客户端，需要指定ip地址，端口，及订阅关键字。
To instantiate a publish-subscribe client, you need to specify the ip address, port, and subscription keyword.

实例化一个发布订阅类的客户端，需要指定ip地址，端口，及订阅关键字。
To instantiate a publish-subscribe client, you need to specify the ip address, port, and subscription keyword.