esp8266接受ping

#include <Pinger.h>
#include <ESP8266WiFi.h>
extern "C"
{
  #include <lwip/icmp.h> // needed for icmp packet definitions
}

// Set global to avoid object removing after setup() routine
Pinger pinger;

void setup()
{  
  // Begin serial connection at 9600 baud
  Serial.begin(9600);
  
  // Connect to WiFi access point
  bool stationConnected = WiFi.begin(
  "ChinaNet-ztvq",
  "guqqmcwk");

  // Check if connection errors
  if(!stationConnected)
  {
    Serial.println("Error, unable to connect specified WiFi network.");
  }
  
  // Wait connection completed
  Serial.print("Connecting to AP...");
  while(WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(".");
  }
  Serial.print("Ok\n");
  
  pinger.OnReceive([](const PingerResponse& response)
  {
    if (response.ReceivedResponse)
    {
    // Return true to continue the ping sequence.
    // If current event returns false, the ping sequence is interrupted.
    return true;
  }});

}

void loop()
{
}