在jQuery中更改img src [英] Changing img src in jQuery

问题描述

我希望在用户向下滚动页面后更改图像(图像大小相同，但颜色不同):

I want an image to change once a user has scrolled down the page (the image is the same size, but different color):

HTML

<ul class="social-media-nav-center">
  <li>
    <a href="https://twitter.com/" target="_blank"><img id="twitter" class="small" src="path/to/image-icon.png" /> 
    </a>
  </li>
</ul>

jQuery

$(document).ready(function(){
  $(window).scroll(function(){      
    if($(window).scrollTop() > $(window).height()) {
      $("#twitter").attr("src", "../path/to/image-color-icon.png");
    }
  })
})

当我向下滚动页面时，图像无法识别，只是出现在问号上.

When I scroll down the page, the image is not recognizable, it just comes up as a question mark.

注意

图像路径有效，请相信我.

The image paths are valid, trust me.

-

我觉得这是一个非常简单的解决方法，有什么想法吗?

I feel it's a really simple fix, any ideas?

推荐答案

选中

HTML

<ul class="social-media-nav-center">
  <li>
    <a href="https://twitter.com/" target="_blank"><img id="twitter" class="small" src="https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRgdlWvqZIB0r6qkjFS_t9uMKD9gQIVMV3fE-Vw9BMoRfNEmJG2" /> 
    </a>
  </li>
</ul>

Jquqey

$(document).ready(function(){
  $(window).scroll(function(){      
    if($(window).scrollTop() > $(window).height()) {
      $("#twitter").attr("src", "http://www.planwallpaper.com/static/images/744081-background-wallpaper.jpg");
    }
  })
})

CSS

.social-media-nav-center{height:1000px;}

https://jsfiddle.net/yakcbanL/

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