phpcms如何实现轮播

phpcms实现轮播的方法：首先在想要加轮播图的位置加入“<div id="flowDiagram" >...</div>”；然后根据自己的需求对css样式进行更改；最后在需要实现轮播的地方加入js代码即可。

phpcms首页实现轮播图

1.在你想要加轮播图的位置加入以下

<div id="flowDiagram" >
<div id="button">
<span index="1" class="on"></span>
<span index="2"></span>
<span index="3"></span>
<span index="4"></span>
<span index="5"></span>
</div>
<div id="photo" style="left:-1200px;">
<div>
{pc:content  action="position" posid="1" thumb="1" order="listorder DESC" num="5"}
{loop $data $r}
<div ><a href="{$r[url]}" target="_blank" title="{$r[title]}"><img src="{thumb($r[thumb],1200,320)}" style="width:1200px; height:320px;" alt="{$r[title]}" /></a></div>
{/loop}
{/pc}
<ul>
{pc:content  action="lists" catid="" thumb="1" order="listorder DESC" num="5"}
{loop $data $r}
<li><a href="{$r[url]}" target="_blank" title="{$r[title]}">{str_cut($r[title],20)}</a></li>
{/loop}
{/pc}
</ul>
<div></div>
</div>
</div>
<span id="pre" class="arrow"> <</span>
<span id="next" class="arrow">> </span>
</div>

由于这个焦点幻灯比较特殊，图片和文字需要两次调用，另外，后台添加内容时要勾选首页焦点图推荐，就可以添加到首页

推荐：《phpcms教程》

2.当然，这里面的css样式根据自己的需求做更改，在这里就不贴出css代码了，实现轮播需要加入以下js代码

window.onload=function(){//获取元素
var flowDiagram = document.getElementById('flowDiagram');//容器
var photo = document.getElementById("photo");
var button = document.getElementById("button").getElementsByTagName('span');
var pre = document.getElementById("pre");
var next = document.getElementById("next");
var index = 1;
var m;
function move(){
m = setInterval(next.onclick,3000);
}
function stop(){
if(m)clearInterval(m);
}
function buttonlight(){
for (var i = 0; i < button.length; i++) {
if(button[i].className == "on"){
button[i].className = "";
break;
}
}
button[index-1].className = "on";
}
pre.onclick=function() {
if (index == 1)
index = 5;
else
index = index-1;
buttonlight();
photo.style.left = parseInt(photo.style.left) + 1200 + "px";
if (parseInt(photo.style.left) > -1200){
photo.style.left = -6000 + "px";
}
}
next.onclick = function(){//当right键被触发时响应
if (index == 5)
index = 1;
else
index = index + 1;
buttonlight();
photo.style.left = parseInt(photo.style.left)-1200 + "px";
if (parseInt(photo.style.left) < -6000){
photo.style.left = -1200 + "px";
}
}
for (var i = 0; i < button.length; i++){
button[i].onclick = function()
{
if(this.className=="on")
return;
var currentindex = parseInt(this.getAttribute("index"));//getAttribute能获取自定义的属性值，也可以获取自带的属性值
var distance = currentindex-index;
photo.style.left = parseInt(photo.style.left)-1200 * distance + "px";
index = currentindex;
buttonlight();
}
}
flowDiagram.onmouseover = stop;
flowDiagram.onmouseout = move;
move();
}

最终效果