add ppv in statistic data

cfg_parse/SimpleProducer.cpp

@@ -435,7 +435,7 @@ public:
             );
 
             if (sendResult == 0) {  // 假设返回 0 表示成功
-                std::cout << "Message sent successfully." << std::endl;
+                std::cout << "Message sent successfully.topic:" << topic <<std::endl;
             } else {
                 std::cout << "Failed to send message." << std::endl;
             }