DEDECMS实现图集单击图片翻页的功能

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1、为了实现这个功能，我们首先需要获得图片页面的当前页码和总页码
编辑include/inc_archives_view.php文件

（1）找到function ParseDMFields，修改为：
function ParseDMFields($pageNo,$ismake=1)
{
$this->NowPage = $pageNo;
//获得当前页面编号
$this->Fields[‘cpagenum’] = $this->NowPage;
if($this->SplitPageField!=”” &&
isset($this->Fields[$this->SplitPageField]))
{
$this->Fields[$this->SplitPageField] = $this->SplitFields[$pageNo – 1];
}

注意增加了如下代码用来获得当前的页码:

$this->Fields[‘cpagenum’] = $this->NowPage;

（2）找到function __construct构造函数，修改为：

$this->TotalPage = count($this->SplitFields);
}
//获得当前页面总数
$this->Fields[‘totalpage’] = $this->TotalPage;
$this->LoadTemplet();
$this->ParseTempletsFirst();
}
注意增加了如下代码用来获得总页码:

$this->Fields[‘totalpage’] = $this->TotalPage;
<span style=”padding: 0px; margin: 0px 3px; color: rgb(68, 68, 68); font-family: “microsoft yahei”, verdana, arial; font-size: 13px; line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);”>2、接下来在模板中用js实现分析静态页面和动态页面以及向下翻页 </span> <span style=”padding: 0px; margin: 0px 3px; color: rgb(68, 68, 68); font-family: “microsoft yahei”, verdana, arial; font-size: 13px; line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);”>编辑article_image.htm或者你的图集最终显示的模板，增加如下js代码：</span>
<script language=”javascript”>
var npage = {dede:field/};
var totalpage = {dede:field/};
var filename=””;
var curl=location.href;
function goNextPic(){
str1 = /\.html/ig;
str2 = /_/ig;
r = curl.search(str1);
r1 = curl.search(str2);
if(r>0){
if(npage==1) filename = curl.substr(0,r);
else filename = curl.substr(0,r1);
if(npage==totalpage){ location.href = filename+”.html”; }
else{
location.href = filename+”_”+(npage+1)+”.html”;
}
}else{
if(npage==totalpage){ location.href = “view.php?aid={dede:field/}”; }
else{
location.href = “view.php?aid={dede:field/}&pageno=”+(npage+1);
}
}
}
</script>
在这个js脚本中，我们定义一个方法goNextPic用来切换到下一个图片。

3、最后修改图片输出代码，完成goNextPic方法调用

修改include/inc_channel_unit.php
找到”//全部列出式或分页式图集”的部分。
修改类似（仔细看代码，需要修改好几个地方）：
<span style=”padding: 0px; margin: 0px 3px; color: rgb(68, 68, 68); font-family: “microsoft yahei”, verdana, arial; font-size: 13px; line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);”>$revalue = “<center><a href=’$src’ target=’_blank’><img src=’$src’ alt=’$alt’ $iw/></a><br/>$alt<br/></center>\r\n”; </span>
为：
<span style=”padding: 0px; margin: 0px 3px; color: rgb(68, 68, 68); font-family: “microsoft yahei”, verdana, arial; font-size: 13px; line-height: 24px; white-space: normal; background-color: rgb(255, 255, 255);”>$revalue = “<center><a href=’javascript:goNextPic();’><img src=’$src’ alt=’$alt’ $iw/></a><br/>$alt<br/></center> “;</span>