cjson打包數組

 cJSON *timerJsonArry=cJSON_CreateArray();

先創建一組數組，

            cJSON *ArrayItem = cJSON_CreateObject();

            cJSON_AddNumberToObject(ArrayItem, "enable",   g_system_data.device_state.mqtt_timer_array.enable);   
            cJSON_AddNumberToObject(ArrayItem, "type",   g_system_data.device_state.mqtt_timer_array.mqtt_timer[i].type); 
            cJSON_AddNumberToObject(ArrayItem, "hour",   g_system_data.device_state.mqtt_timer_array.mqtt_timer[i].openHour); 
            cJSON_AddNumberToObject(ArrayItem, "minute",   g_system_data.device_state.mqtt_timer_array.mqtt_timer[i].openMin);    
            cJSON_AddNumberToObject(ArrayItem, "repeat",   g_system_data.device_state.mqtt_timer_array.mqtt_timer[i].repeat); 

    	    cJSON_AddItemToArray(timerJsonArry,ArrayItem);

            cJSON_AddItemToObject(timerJSObject, "timer", timerJsonArry);

再創建一個對象，再從對象中添加數據，最後再把對象添加到數組中，然後再打包進“timer”字段

            iot_json = cJSON_PrintUnformatted(IOTJSObject);  
            sprintf(package_msg, "%s", iot_json);
            //Ihoment_printf(IHOMENT_ALWAYS, "pack:%s\n", package_msg);
            printf( "mqtt json pack:%s\n", package_msg);
            vPortFree(iot_json);
            cJSON_Delete(IOTJSObject);

然後把打包的字段憑藉起來轉換爲字符串形式，打印出來，最後釋放內存

打包的數組大概是這樣

    "timer":[
      {
        "enable":0/1,
        "type":0/1, 
        "hour":0, 
        "minute":23,
        "repeat":1  
      }
    ]，

如果是多個數組，直接在第一步代碼中循環打包數組就好了