#include "DHT.h"
#define DHTPIN 4
#define DHTTYPE DHT22
DHT dht(DHTPIN,DHTTYPE);
void setup(){Serial.begin(9600);dht.begin();}
void loop(){delay(1000);float h=dht.readHumidity(),c=dht.readTemperature();
Serial.print("湿度:");Serial.print(h);Serial.print("% 温度:");Serial.print(c);Serial.println("C");}