Easy LED With Blynk

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>


#define BLYNK_PRINT Serial
char auth[] = "mDQBzCEzQqL9SDQYvNwP4yhv2lDgrk6q";
char ssid[] = "NA";
char pswd[] = "234567ER";
void setup() {
  Serial.begin(9600);
  Blynk.begin(auth,ssid,pswd);
}
void loop() {
 Blynk.run();

}