从jQuery插件代码中的ul ID访问li(Access li from ul ID inside jQuery plugin codes)

 嗨我对jquery插件文档有点困惑： http ： //learn.jquery.com/plugins/basic-plugin-creation/ 
 
 我的HTML标记： 
 
    <ul id="slider1">
        <li><img src="images/slides/slide1.png" alt=""></li>
        <li><img src="images/slides/slide2.png" alt=""></li>
        <li><img src="images/slides/slide3.png" alt=""></li>
    </ul>
 
 我的jquery脚本： 
 
    $('#slider1').jSlider();
 
 在我的jakeSlider.js脚本（自定义插件） 
 
    (function($){
        $.fn.jSlider = function(){
          var $slidePos = 1;
          var $slideCount = $(this).find('li').length;
          var $next = $(this).find('a'); //FOR MY NEXT TEXT Hyperlink

          $(this).find('li:nth-child(' + $slidePos + ')').css('display', 'block');

          $($next).click(function(){
              $(this).find('li:nth-child(' + $slidePos + ')').fadeOut('slow');
              if($slidePos < $slideCount){
                  $slidePos += 1;
              }else{
                  $slidePos = 1;
              }
              $(this).find('li:nth-child(' + $slidePos + ')').fadeIn('slow');
             });
          };
    }(jQuery));
 
 我的问题：如何访问或迭代ul中的列表索引？ 我的意思是，我将沿着插件脚本访问'li'。 

Hi I am a little bit confused on jquery plugin documentation stated here: http://learn.jquery.com/plugins/basic-plugin-creation/
 
My HTML markup:
 
    <ul id="slider1">
        <li><img src="images/slides/slide1.png" alt=""></li>
        <li><img src="images/slides/slide2.png" alt=""></li>
        <li><img src="images/slides/slide3.png" alt=""></li>
    </ul>
 
My jquery script:
 
    $('#slider1').jSlider();
 
on my jakeSlider.js script (Custom Plugin)
 
    (function($){
        $.fn.jSlider = function(){
          var $slidePos = 1;
          var $slideCount = $(this).find('li').length;
          var $next = $(this).find('a'); //FOR MY NEXT TEXT Hyperlink

          $(this).find('li:nth-child(' + $slidePos + ')').css('display', 'block');

          $($next).click(function(){
              $(this).find('li:nth-child(' + $slidePos + ')').fadeOut('slow');
              if($slidePos < $slideCount){
                  $slidePos += 1;
              }else{
                  $slidePos = 1;
              }
              $(this).find('li:nth-child(' + $slidePos + ')').fadeIn('slow');
             });
          };
    }(jQuery));
 
My Question: How could I access or iterate the list index inside the ul? I mean, I will access the 'li' inside along plugin scripts..

原文：https://stackoverflow.com/questions/19791619