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W3.JS HTML幻灯片


启动幻灯片

w3.slideshow(选择器, 间隔(毫秒))

示例

<img class="nature" src="img_snowtops.jpg">
<img class="nature" src="img_mountains.jpg">
<img class="nature" src="img_nature.jpg">

<script>
w3.slideshow(".nature");
</script>
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不自动启动

要防止幻灯片自动启动,请将间隔参数设置为0

示例

w3.slideshow(".nature", 0);
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下一张幻灯片

添加按钮浏览幻灯片

当您启动幻灯片时,w3.slideshow() 函数会返回一个表示幻灯片的对象。

var myShow = w3.slideshow(".nature", 0);

幻灯片对象包含属性和方法,例如 next() 和 previous()

示例

<button onclick="myShow.previous()">上一张</button>
<button onclick="myShow.next()">下一张</button>
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更多幻灯片

任何HTML元素都可以包含在幻灯片中。

使用CSS选择器定义哪些元素。

示例

标题

<h1 class="city">伦敦</h1>
<h1 class="city">巴黎</h1>
<h1 class="city">东京</h1>

<script>
w3.slideshow(".city");
</script>
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