如何在单个HTML页面中使用不同样式的多个Swiper JS组件

问题根源 #

• 第二个Swiper的幻灯片用了自定义的swiper-slide1类，Swiper只能识别默认的swiper-slide类，导致无法初始化幻灯片。
• JS里重复用var swiper变量，会覆盖第一个实例的引用，虽不直接导致失效，但不利于后续维护。
• 第二个Swiper容器的CSS选择器错误（.swiper1），无法正确应用样式。

修正步骤 #

1. 改幻灯片类名：把第二个Swiper里的所有swiper-slide1换成swiper-slide，要加自定义样式的话，在这个类基础上额外加类（比如custom-slide）。
2. 区分JS实例变量：把第二个Swiper的变量名改成swiper2，避免变量覆盖。
3. 修正CSS选择器：用.mySwiper1作为第二个Swiper容器的选择器，替换无效的.swiper1。
4. 统一分页器类名（可选）：把第二个分页器的类名改成swiper-pagination swiper-pagination-2，既保持Swiper规范，又方便自定义样式。

修正后的JS代码 #

var swiper = new Swiper(".mySwiper", {
  effect: "flip",
  grabCursor: true,
  pagination: {
    el: ".swiper-pagination",
  },
  navigation: {
    nextEl: ".swiper-button-next",
    prevEl: ".swiper-button-prev",
  },
});
// 第二个Swiper实例，用不同变量名
var swiper2 = new Swiper(".mySwiper1", {
  slidesPerView: 3,
  spaceBetween: 30,
  freeMode: true,
  pagination: {
    el: ".swiper-pagination-2",
    clickable: true,
  },
});

修正后的CSS代码 #

.swiper {
  width: 50%;
  height: 50em;
  padding: 50px;
}

.swiper-slide {
  background-position: center;
  background-size: cover;
  width: 300px;
  height: 300px;
}

.swiper-slide img {
  display: block;
  width: 100%;
  border-radius: 10em;
}

.swiper-pagination {
  top: 42em;
}

/* 第二个Swiper容器样式，用正确选择器 */
.mySwiper1 {
  width: 100%;
  height: 100%;
  margin-top: 50px; /* 可选，加间距区分两个组件 */
}

/* 第二个Swiper的幻灯片样式，基于默认类加自定义样式 */
.mySwiper1 .swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;
  /* 垂直居中文字 */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}

.mySwiper1 .swiper-slide .img1 {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

修正后的HTML代码 #

<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/swiper@8/swiper-bundle.min.css" />

<header class="nav">
  <ul class="nav_">
    <li><a href="">Home</a></li>
    <li><a href="">services</a></li>
    <li><a href="">Contact us</a></li>
  </ul>
</header>

<div class="curve">
</div>
<section>
  <img id="img_header" src="/img/Header_2.png" alt="">
</section>
<div class="section_title">
  <h3 id="section_products">Products</h3>
</div>
<div class="swiper mySwiper">
  <div class="swiper-wrapper">
    <div class="swiper-slide">
      <a href=""> <img src="https://swiperjs.com/demos/images/nature-1.jpg" /></a>
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-2.jpg" />
      <h1 id="section_Name">مختار</h1>
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-3.jpg" />
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-4.jpg" />
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-5.jpg" />
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-6.jpg" />
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-6.jpg" />
    </div>
    <div class="swiper-slide">
      <img src="https://swiperjs.com/demos/images/nature-5.jpg" />
    </div>
  </div>
  <div class="swiper-button-next"></div>
  <div class="swiper-button-prev"></div>
  <div class="swiper-pagination"></div>
</div>

<!-- 修正后的第二个Swiper -->
<div class="swiper mySwiper1">
  <div class="swiper-wrapper">
    <div class="swiper-slide">Slide 1</div>
    <div class="swiper-slide">Slide 2</div>
    <div class="swiper-slide">Slide 3</div>
    <div class="swiper-slide">Slide 4</div>
    <div class="swiper-slide">Slide 5</div>
    <div class="swiper-slide">Slide 6</div>
    <div class="swiper-slide">Slide 7</div>
    <div class="swiper-slide">Slide 8</div>
    <div class="swiper-slide">Slide 9</div>
  </div>
  <div class="swiper-pagination swiper-pagination-2"></div>
</div>

<script src="https://cdn.jsdelivr.net/npm/swiper@8/swiper-bundle.min.js"></script>

内容的提问来源于stack exchange，提问作者ibrahim mohamed