'input propertychange' 当输入框文字改变时触发的事件!

$('.amount_input').bind('input propertychange', function() {
console.log(2);
$('.list label').removeClass('clicks');
$('.list label').removeClass('click');
$('.list label .arrow-down').remove();

});

 

.bind()事件为点击鼠标触发的事件