Question

我有以下图标，我想在单击时更改每个图标，并在单击另一个图像后将图像更改为原始图像。我如何用jQuery做到这一点？

<ul>
    <li><a class="button" id="mobile-icon" href="#"><img src="images/mobile-icon.png" class="defaultimg"></a><h4>Mobile</h4></li>
    <li><a class="button" id="music-icon" href="#" ><img src="images/music-icon.png" class="defaultimg"></a><h4>Music</h4></li>
    <li><a class="button" id="camera-icon" href="#" ><img  src="images/camera-icon.png" class="defaultimg"></a><h4>Camera</h4></li>
    <li><a class="button" id="computers-icon" href="#" ><img  src="images/computers-icon.png" class="defaultimg"></a><h4>Computers</h4></li>
</ul>

我目前只对jquery进行编码..而且我被卡住了。请帮忙..

$(document).ready(function() {
    $('.button').click(function(){
        $('.clicked').removeClass("clicked")
        $(this).addClass("clicked")
        if ($(".button").hasClass("clicked")) {
            var id = $(this).find('img');
            var idToSRC = 'images/'+ this.id + '_hover' +'.png';
            id.attr('src', idToSRC);
        }else if($(".button").not("clicked")){
            id.removeAttr('src', idToSRC);
        }
    });

Answer 1

你按钮click未关闭似乎有些语法错误整体代码工作正常请在下面的代码段找到更多信息。

＆＃13;

$(document).ready(function() {
$('.button').click(function(){
      $('.clicked').removeClass("clicked")
      $(this).addClass("clicked")
      if ($(".button").hasClass("clicked")) 
      {
          var id = $(this).find('img');
          //var idToSRC = 'images/'+ this.id + '_hover' +'.png';
          var idToSRC = 'https://dummyimage.com/100x100/';
          id.attr('src', idToSRC);
      }
      else if($(".button").not("clicked"))
      {
        id.removeAttr('src', idToSRC);
      }
});
});

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
    <li><a class="button" id="mobile-icon" href="#"><img src="https://dummyimage.com/100x100/fffg/000" class="defaultimg"></a><h4>Mobile</h4></li>
    <li><a class="button" id="music-icon" href="#" ><img src="https://dummyimage.com/100x100/fffg/000" class="defaultimg"></a><h4>Music</h4></li>
    <li><a class="button" id="camera-icon" href="#" ><img  src="https://dummyimage.com/100x100/fffg/000" class="defaultimg"></a><h4>Camera</h4></li>
    <li><a class="button" id="computers-icon" href="#" ><img  src="https://dummyimage.com/100x100/fffg/000" class="defaultimg"></a><h4>Computers</h4></li>
</ul>

＆＃13;

Answer 2

更改您的代码如下： -

$(document).ready(function() {
  $('.button').click(function(){
      var myid = $(this);
      $('.clicked').removeClass("clicked")
      myid.addClass("clicked")
      var idToSRC = 'images/'+ this.id + '_hover' +'.png';
      myid.find('img').attr('src', idToSRC);
      $('.button').not(myid).each(function(){
        $(this).find('img').attr('src', 'images/'+ this.id +'.png');
      });
  });
});//missed

工作示例： -

$(document).ready(function() {// when document is ready
  $('.button').click(function(){ // when i click on a link
      var myid = $(this); // create an object variable
      $('.clicked').removeClass("clicked") //remove clicked class from all links
      myid.addClass("clicked") //add clicked class to current clicked link
      var idToSRC = 'images/'+ this.id + '_hover' +'.png'; //create new image path
      myid.find('img').attr('src', idToSRC); // change image path of current clicked link
      $('.button').not(myid).each(function(){ //for each other links except the current clicked link (not(myid) is doing that job to leave current clicked link)
        $(this).find('img').attr('src', 'images/'+ this.id +'.png'); //change images to orignal-one
      });
  });
});// you missed this in your code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
    <li><a class="button" id="mobile-icon" href="#"><img src="images/mobile-icon.png" class="defaultimg"></a><h4>Mobile</h4></li>
    <li><a class="button" id="music-icon" href="#" ><img src="images/music-icon.png" class="defaultimg"></a><h4>Music</h4></li>
    <li><a class="button" id="camera-icon" href="#" ><img  src="images/camera-icon.png" class="defaultimg"></a><h4>Camera</h4></li>
    <li><a class="button" id="computers-icon" href="#" ><img  src="images/computers-icon.png" class="defaultimg"></a><h4>Computers</h4></li>
</ul>

单击时如何更改图像？

2 个答案: