带有非常简单滑块的多个滑块

Question

我正在尝试将 Very Simple Slider 用于我未来的网站，但是当我想在同一页面上有多个滑块时，我遇到了问题。

当我复制 HTML/CSS/JS 中的所有属性并更改名称以创建新滑块时，它确实会创建一个新滑块，但控制箭头不再起作用。好吧，它们有效，但仅适用于一个滑块。我知道这可能是 JS 问题，但由于我不是开发人员，所以我找不到问题所在。

如果您能帮我找到解决方案 - 以及缩短 CSS 和 JS 的方法，那将非常酷，因为我将不得不通过 css modals 在同一页面上使用此滑块十次。

哦，这是我的代码。

jQuery(document).ready(function($) {

  $('#checkbox').change(function() {
    setInterval(function() {
      moveRight();
    }, 3000);
  });

  var slideCount = $('#slider ul li').length;
  var slideWidth = $('#slider ul li').width();
  var slideHeight = $('#slider ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider ul li:last-child').prependTo('#slider ul');

  function moveLeft() {
    $('#slider ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider ul li:last-child').prependTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  function moveRight() {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  $('a.control_prev').click(function() {
    moveLeft();
  });

  $('a.control_next').click(function() {
    moveRight();
  });


  var slideCount = $('#slider2 ul li').length;
  var slideWidth = $('#slider2 ul li').width();
  var slideHeight = $('#slider2 ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider2').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider2 ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider2 ul li:last-child').prependTo('#slider2 ul');

  function moveLeft() {
    $('#slider2 ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider2 ul li:last-child').prependTo('#slider2 ul');
      $('#slider2 ul').css('left', '');
    });
  };

  function moveRight() {
    $('#slider2 ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider2 ul li:first-child').appendTo('#slider2 ul');
      $('#slider2 ul').css('left', '');
    });
  };

  $('a.control_prev2').click(function() {
    moveLeft();
  });

  $('a.control_next2').click(function() {
    moveRight();
  });

});

#slider {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}

a.control_prev,
a.control_next {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev:hover,
a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev {
  border-radius: 0 2px 2px 0;
}

a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
}

.slider_option {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}

#slider2 {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider2 ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider2 ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}

a.control_prev2,
a.control_next2 {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev2:hover,
a.control_next2:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev2 {
  border-radius: 0 2px 2px 0;
}

a.control_next2 {
  right: 0;
  border-radius: 2px 0 0 2px;
}

.slider_option2 {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="slider">
  <a href="#" class="control_next">></a>
  <a href="#" class="control_prev">
    <</a>
      <ul>
        <li>SLIDE 1</li>
        <li style="background: #aaa;">SLIDE 2</li>
        <li>SLIDE 3</li>
        <li style="background: #aaa;">SLIDE 4</li>
      </ul>
</div>

<div id="slider2">
  <a href="#" class="control_next2">></a>
  <a href="#" class="control_prev2">
    <</a>
      <ul>
        <li>SLIDE 1</li>
        <li style="background: #aaa;">SLIDE 2</li>
        <li>SLIDE 3</li>
        <li style="background: #aaa;">SLIDE 4</li>
      </ul>
</div>

Answer 1

您要声明 moveLeft 和 moveRight 两次，只需将其中一个重命名为滑块2，它就会起作用

编辑：

不推荐您使用的方法，因为每次需要在同一页面上添加新滑块时都必须更改源代码（js和css），您应该研究如何创建插件，这将帮助您学习如何创建通用滑块，同时像 slick 这样的滑块的一个很好的例子将是一个不错的选择，但是由于您正在尝试学习并想要清除错误，这就是为什么添加sn-p 并提出答案。

jQuery(document).ready(function($) {

  $('#checkbox').change(function() {
    setInterval(function() {
      moveRight();
    }, 3000);
  });

  var slideCount = $('#slider ul li').length;
  var slideWidth = $('#slider ul li').width();
  var slideHeight = $('#slider ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider ul li:last-child').prependTo('#slider ul');

  function moveLeft() {
    $('#slider ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider ul li:last-child').prependTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  function moveRight() {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  $('a.control_prev').click(function() {
    moveLeft();
  });

  $('a.control_next').click(function() {
    moveRight();
  });


  var slideCount = $('#slider2 ul li').length;
  var slideWidth = $('#slider2 ul li').width();
  var slideHeight = $('#slider2 ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider2').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider2 ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider2 ul li:last-child').prependTo('#slider2 ul');

  function moveLeft2() {
    $('#slider2 ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider2 ul li:last-child').prependTo('#slider2 ul');
      $('#slider2 ul').css('left', '');
    });
  };

  function moveRight2() {
    $('#slider2 ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider2 ul li:first-child').appendTo('#slider2 ul');
      $('#slider2 ul').css('left', '');
    });
  };

  $('a.control_prev2').click(function() {
    moveLeft2();
  });

  $('a.control_next2').click(function() {
    moveRight2();
  });

});

#slider {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}

a.control_prev,
a.control_next {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev:hover,
a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev {
  border-radius: 0 2px 2px 0;
}

a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
}

.slider_option {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}

#slider2 {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider2 ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider2 ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}

a.control_prev2,
a.control_next2 {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev2:hover,
a.control_next2:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev2 {
  border-radius: 0 2px 2px 0;
}

a.control_next2 {
  right: 0;
  border-radius: 2px 0 0 2px;
}

.slider_option2 {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="slider">
  <a href="#." class="control_next">&gt;</a>
  <a href="#." class="control_prev">
    &lt;</a>
  <ul>
    <li>SLIDE 1</li>
    <li style="background: #aaa;">SLIDE 2</li>
    <li>SLIDE 3</li>
    <li style="background: #aaa;">SLIDE 4</li>
  </ul>
</div>

<div id="slider2">
  <a href="#." class="control_next2">&gt;</a>
  <a href="#." class="control_prev2">
    &lt;</a>
  <ul>
    <li>SLIDE 1</li>
    <li style="background: #aaa;">SLIDE 2</li>
    <li>SLIDE 3</li>
    <li style="background: #aaa;">SLIDE 4</li>
  </ul>
</div>

Answer 2

这是一个工作示例。但您应该使其更通用，以便您可以根据需要添加多个滑块。

jQuery(document).ready(function($) {

  $('#checkbox').change(function() {
    setInterval(function() {
      moveRight();
    }, 3000);
  });

  var slideCount = $('#slider ul li').length;
  var slideWidth = $('#slider ul li').width();
  var slideHeight = $('#slider ul li').height();
  var sliderUlWidth = slideCount * slideWidth;

  $('#slider').css({
    width: slideWidth,
    height: slideHeight
  });

  $('#slider ul').css({
    width: sliderUlWidth,
    marginLeft: -slideWidth
  });

  $('#slider ul li:last-child').prependTo('#slider ul');

  function moveLeft() {
    $('#slider ul').animate({
      left: +slideWidth
    }, 200, function() {
      $('#slider ul li:last-child').prependTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  function moveRight() {
    $('#slider ul').animate({
      left: -slideWidth
    }, 200, function() {
      $('#slider ul li:first-child').appendTo('#slider ul');
      $('#slider ul').css('left', '');
    });
  };

  $('a.control_prev').click(function() {
    moveLeft();
  });

  $('a.control_next').click(function() {
    moveRight();
  });

var slide2Count = $('#slider2 ul li').length;
	var slide2Width = $('#slider2 ul li').width();
	var slide2Height = $('#slider2 ul li').height();
	var slider2UlWidth = slide2Count * slide2Width;
	
	$('#slider2').css({ width: slide2Width, height: slide2Height });
	
	$('#slider2 ul').css({ width: slider2UlWidth, marginLeft: - slide2Width });
	
    $('#slider2 ul li:last-child').prependTo('#slider2 ul');

    function moveLeftS2() {
        $('#slider2 ul').animate({
            left: + slide2Width
        }, 200, function () {
            $('#slider2 ul li:last-child').prependTo('#slider2 ul');
            $('#slider2 ul').css('left', '');
        });
    };

    function moveRightS2() {
        $('#slider2 ul').animate({
            left: - slide2Width
        }, 200, function () {
            $('#slider2 ul li:first-child').appendTo('#slider2 ul');
            $('#slider2 ul').css('left', '');
        });
    };

    $('a.control_prev2').click(function () {
        moveLeftS2();
    });

    $('a.control_next2').click(function () {
        moveRightS2();
    });


});

#slider {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}

a.control_prev,
a.control_next {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev:hover,
a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev {
  border-radius: 0 2px 2px 0;
}

a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
}

.slider_option {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}

#slider2 {
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider2 ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider2 ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 500px;
  height: 300px;
  background: #ccc;
  text-align: center;
  line-height: 300px;
}

a.control_prev2,
a.control_next2 {
  position: absolute;
  top: 40%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  background: #2a2a2a;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev2:hover,
a.control_next2:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev2 {
  border-radius: 0 2px 2px 0;
}

a.control_next2 {
  right: 0;
  border-radius: 2px 0 0 2px;
}

.slider_option2 {
  position: relative;
  margin: 10px auto;
  width: 160px;
  font-size: 18px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="slider">
  <a href="javascript:;" class="control_next">></a>
  <a href="javascript:;" class="control_prev">
    <</a>
      <ul>
        <li>SLIDE 1</li>
        <li style="background: #aaa;">SLIDE 2</li>
        <li>SLIDE 3</li>
        <li style="background: #aaa;">SLIDE 4</li>
      </ul>
</div>

<div id="slider2">
  <a href="javascript:;" class="control_next2">></a>
  <a href="javascript:;" class="control_prev2">
    < </a>
      <ul>
        <li>SLIDE 21</li>
        <li style="background: #aaa;">SLIDE 22</li>
        <li>SLIDE 23</li>
        <li style="background: #aaa;">SLIDE 24</li>
      </ul>
</div>