MqttServerReportProgress 方法

向客户端发布一个进度报告的信息，仅用于同步网络的时候才支持进度报告，将进度及消息发送给客户端，比如你的服务器需要分成5个部分完成，可以按照百分比提示给客户端当前服务器发生了什么
Publish the information of a progress report to the client. The progress report is only supported when the network is synchronized. The progress and the message are sent to the client. For example, your server needs to be divided into 5 parts to complete. You can prompt the client according to the percentage. What happened to the server

public void ReportProgress(
	MqttSession session,
	string topic,
	string payload
)

Public Sub ReportProgress ( 
	session As MqttSession,
	topic As String,
	payload As String
)

public:
void ReportProgress(
	MqttSession^ session, 
	String^ topic, 
	String^ payload
)

member ReportProgress : 
        session : MqttSession * 
        topic : string * 
        payload : string -> unit