在悬停时更改图像和淡入淡出

Question

我有以下代码：

$('div.test').hover(function() {
    $(this).find('img').attr('src', 'img/personale/test2.png');
}, function() {
    $(this).find('img').attr('src', 'img/personale/test.png');
});

如何在悬停时更改图像时添加fadeIn效果？

Answer 1

尝试使用fadeIn()和fadeOut()：

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$('div.test').hover(function () {
    $(this).find('img').hide().attr('src', 'http://blog.stackoverflow.com/wp-content/uploads/StackExchangeLogo1.png').fadeIn(2000);
}, function () {
    $(this).find('img').fadeOut(2000,function(){
      $(this).attr('src','http://londontechnologyweek.co.uk/assets/uploads/2014/06/Stack-Overflow-Logo.png').fadeIn();
    });
});

＆＃13;

.test{
    min-height:200px;
    text-align:center;
    border:1px solid;
}
.test img{
    width:100%;
    height:auto;
}

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<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="test">
    <img src="http://londontechnologyweek.co.uk/assets/uploads/2014/06/Stack-Overflow-Logo.png"/>
</div>

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