查看“︁Widget:Carousel”︁的源代码

<includeonly>
<style>
.w-c {position:relative; width:<!--{$width|default:'100%'}-->; height:<!--{$height|default:'400px'}-->; overflow:hidden; background:#222; margin:10px auto;}
.w-s {display:none; width:100%; height:100%;}
.w-s img {width:100%; height:100%; object-fit:cover;}
.w-s.active {display:block;}
.c-n {position:absolute; top:50%; transform:translateY(-50%); background:rgba(0,0,0,.5); color:#fff; padding:15px 10px; cursor:pointer; border:none; z-index:5;}
.n-p {left:0;} .n-n {right:0;}

.c-i {position:absolute; bottom:15px; right:15px; display:flex; gap:8px; z-index:10;}
.dot {width:10px; height:10px; background:rgba(255,255,255,.5); border-radius:50%; cursor:pointer; transition:0.3s;}
.dot.active {background:#fff; transform:scale(1.2);}
</style>

<div class="w-c" id="carousel">
    <button class="c-n n-p" onclick="mv(-1)">&#10094;</button>
    <button class="c-n n-n" onclick="mv(1)">&#10095;</button>
    
    <div id="slide-inner">
        <!--{if $img1}--><div class="w-s active"><a class="l" data-t="<!--{$link1}-->"><img class="i" data-f="<!--{$img1}-->"></a></div><!--{/if}-->
        <!--{if $img2}--><div class="w-s"><a class="l" data-t="<!--{$link2}-->"><img class="i" data-f="<!--{$img2}-->"></a></div><!--{/if}-->
        <!--{if $img3}--><div class="w-s"><a class="l" data-t="<!--{$link3}-->"><img class="i" data-f="<!--{$img3}-->"></a></div><!--{/if}-->
        <!--{if $img4}--><div class="w-s"><a class="l" data-t="<!--{$link4}-->"><img class="i" data-f="<!--{$img4}-->"></a></div><!--{/if}-->
        <!--{if $img5}--><div class="w-s"><a class="l" data-t="<!--{$link5}-->"><img class="i" data-f="<!--{$img5}-->"></a></div><!--{/if}-->
        <!--{if $img6}--><div class="w-s"><a class="l" data-t="<!--{$link6}-->"><img class="i" data-f="<!--{$img6}-->"></a></div><!--{/if}-->
        <!--{if $img7}--><div class="w-s"><a class="l" data-t="<!--{$link7}-->"><img class="i" data-f="<!--{$img7}-->"></a></div><!--{/if}-->
        <!--{if $img8}--><div class="w-s"><a class="l" data-t="<!--{$link8}-->"><img class="i" data-f="<!--{$img8}-->"></a></div><!--{/if}-->
        <!--{if $img9}--><div class="w-s"><a class="l" data-t="<!--{$link9}-->"><img class="i" data-f="<!--{$img9}-->"></a></div><!--{/if}-->
    </div>
    <div class="c-i" id="dots-ctx"></div>
</div>

<script>
(function(){
    var b = '/wiki/', container = document.getElementById('carousel');
    var is = container.querySelectorAll('.i'), ls = container.querySelectorAll('.l');
    var dotsCtx = document.getElementById('dots-ctx');

    for(var i=0; i<is.length; i++){
        is[i].src = b + 'Special:FilePath/' + encodeURIComponent(is[i].dataset.f.trim());
        if(ls[i].dataset.t) ls[i].href = b + encodeURIComponent(ls[i].dataset.t.trim());

        var dot = document.createElement('div');
        dot.className = 'dot' + (i===0 ? ' active' : '');
        dot.setAttribute('onclick', 'goSlide('+i+')');
        dotsCtx.appendChild(dot);
    }
})();

function mv(n){
    var s = document.querySelectorAll('.w-s'), d = document.querySelectorAll('.dot'), a = 0;
    if(s.length <= 1) return;
    for(var i=0; i<s.length; i++) if(s[i].classList.contains('active')){a=i;break;}
    update(a, (a + n + s.length) % s.length);
}

function goSlide(n){
    var s = document.querySelectorAll('.w-s'), a = 0;
    for(var i=0; i<s.length; i++) if(s[i].classList.contains('active')){a=i;break;}
    update(a, n);
}

function update(oldIdx, newIdx){
    var s = document.querySelectorAll('.w-s'), d = document.querySelectorAll('.dot');
    s[oldIdx].classList.remove('active');
    d[oldIdx].classList.remove('active');
    s[newIdx].classList.add('active');
    d[newIdx].classList.add('active');
}

var timer = setInterval(function(){mv(1)}, 5000);
// 鼠标悬停暂停
document.getElementById('carousel').onmouseenter = function(){clearInterval(timer)};
document.getElementById('carousel').onmouseleave = function(){timer = setInterval(function(){mv(1)}, 5000)};
</script>
</includeonly>
<noinclude>{{doc|content=
用于[[首页/活动轮换图]]的微件,最多支持9图轮播。
==用法==
<pre>
{{#widget:Carousel
|width=800px
|height=300px
|img1=图1.jpg |link1=页面1
|img2=图2.jpg |link2=页面2
……
}}
</pre>
}}</noinclude>