问如何让我的不和谐机器人在一个频道中统计消息，并将该数字放入其状态？

EN

let count = 0;

client.on('ready', () => {
  client.user.setActivity("photos | " + count + " photos so far...", { type: 'WATCHING' }).catch(console.error);
});

client.on('message', (message) => {
  if(message.guild && message.channel.id === "Your photography channel ID"){
    if(message.attachments.size != 0){ //Check if the message is an image.
      count++;
      client.user.setActivity("photos | " + count + " photos so far...", { type: 'WATCHING' }).catch(console.error);
    }
  }
});