最简单的 DIV + Javascript 分页演示代码

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手中有一个改进Web Part 的任务,要求加一个分页,及对应前一页,后一页导航,以下为一个很简单的验证代码:

<html>
<body>
<head>
<script Language = 'JavaScript'>

var curPage =0; maxPage =4;
function selectedPageByID(inputId)
{
 var divs = document.getElementsByTagName('div');
 var divCounter = 1;
 var divcountlength = divs.length;
 for(var no = 0; no < divcountlength; no++)
 {
  if(divs[no].id == inputId)
  {
   divs[no].style.display = "block";
   curPage = no;
  }
  else
  {
   divs[no].style.display = "none";
  }
 }
}

function selectedPageByNo(pageNo)
{
 var divs = document.getElementsByTagName('div');
 var divCounter = 1;
 var divcountlength = divs.length;
 for(var no = 0; no < divcountlength; no++)
 {
  if(no == pageNo)
  {
   divs[no].style.display = "block";
   curPage = no;
   
  }
  else
  {
   divs[no].style.display = "none";
  }
 }
}

function getNextPage()
{
 curPage = parseInt(curPage)+1;
 if (curPage > maxPage) curPage = maxPage;
 selectedPageByNo(curPage);
}

function getPrePage()
{
 curPage = parseInt(curPage)-1;
 if (curPage < 0) curPage = 0;
 selectedPageByNo(curPage);
}

</script>
</head>
<a href='javascript:selectedPageByNo(0);'> |< </a>
<a href='javascript:getPrePage();'> < </a>
<a href='javascript:selectedPageByID("Page1");'> 1 </a>
<a href='javascript:selectedPageByID("Page2");'> 2 </a>
<a href='javascript:selectedPageByID("Page3");'> 3 </a>
<a href='javascript:selectedPageByID("Page4");'> 4 </a>
<a href='javascript:selectedPageByID("Page5");'> 5 </a>
<a href='javascript:getNextPage();'> > </a>
<a href='javascript:selectedPageByNo(4);'> >| </a>

<hr>

<div id ='Page1' style='display:none'>
Hello!<br>This is testing Page 1.
</div>
<div id = 'Page2' style='display:none'>
Hello!<br>This is testing Page 2.
</div>
<div id = 'Page3' style='display:none'>
Hello!<br>This is testing Page 3.
</div>
<div id = 'Page4' style='display:none'>
Hello!<br>This is testing Page 4.
</div>
<div id = 'Page5' style='display:none'>
Hello!<br>This is testing Page 5.
</div>

</body>
</html>