// 获取城市天气
void getCityWeater()
{
	heapa=23920
	
  // String URL = "http://d1.weather.com.cn/dingzhi/" + cityCode + ".html?_="+String(now());//新
  String URL = "http://d1.weather.com.cn/weather_index/" + cityCode + ".html?_=" + String(now()); //原来
  //创建 HTTPClient 对象
  HTTPClient httpClient;
	
	heapa=23808
	
	...............
	
  //如果服务器响应OK则从服务器获取响应体信息并通过串口输出
  if (httpCode == HTTP_CODE_OK)
  {
		heapa=22856
		
    String str = httpClient.getString();	
    int indexStart = str.indexOf("weatherinfo\":");
    int indexEnd = str.indexOf("};var alarmDZ");
		
		heapa=5424

		.....
		
		heapa=4568
    Serial.printf( "heapa size:%u\r\n", system_get_free_heap_size());
    weaterData(&jsonCityDZ, &jsonDataSK, &jsonFC);
    Serial.println("获取成功");
  }
  
	...............
}