再次单击时 Google 地图标记会发生变化 - 附上 Fidde

这是我的小提琴。http://jsfiddle.net/tp2f74sz/

基本上我想要实现的是当我点击它时它会变成绿色，但是当我重新点击时我想再次将它变回黑色。现在当我点击关闭图标时它会改变

请帮忙

谢谢

    var infowindow = new google.maps.InfoWindow({
        
       id: this.id,
        content:this.html,
     pixelOffset: new google.maps.Size(0,-30),
        position:this.getPosition({pixelOffset: new google.maps.Size(500,0)})
        
        
      });
          
    

      var markerrr = new google.maps.Marker({
  position: location,
  map: map,
  icon: 'https://www.google.com/mapfiles/marker_green.png'
});
      
      
      google.maps.event.addListenerOnce(infowindow, 'closeclick', function(){
        markers[this.id].setVisible(true);
       markers[this.id].setIcon('https://www.google.com/mapfiles/marker_black.png');
        
      });
      
      this.setVisible(true);

      infowindow.open(map);
      this.setIcon('https://www.google.com/mapfiles/marker_green.png');
    });
  }