// mqtt_tiny.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。 // #include <iostream> #include "mqttclient.h" #include <windows.h> #include <conio.h> static void mqtt_message_cb(void* client, const char* topic, const uint8_t* data, uint32_t datalen, uint8_t qos){printf("topic:%s\r\n",topic);printf<