// 生成目录索引列表
function GenerateContentList()
{
    var mainContent = $('#cnblogs_post_body');
    //h2，大标标题内容
    var h2_list = $('#cnblogs_post_body h2');//如果你的章节标题不是h2,只需要将这里的h2换掉即可

    if(mainContent.length < 1)
        return;
 
    if(h2_list.length>0)
    {
        var content = '<a name="_labelTop"></a>';
        content += '<div id="navCategory">';
        content += '<p style="font-size:18px"><b>思维导航：</b></p>';
        content += '<ul>';
         
        //目录遍历
        for(var i=0; i<h2_list.length; i++)
        {
            //回到顶部
            var go_to_top = '<div style="text-align: right;"><a href="#_labelTop"><b style="font-family: "Arial","Microsoft YaHei","黑体","宋体",sans-serif;">🚀回到顶部</b></a><a name="_label' + i + '"></a></div>';
            
            //回到顶部添加
            $(h2_list[i]).before(go_to_top);
            
            //h3列表数据
             var h3_list = $(h2_list[i]).nextAll("h3");
            //console.log("h3l列表数据");
            var li3_content = '';
            for(var j=0; j<h3_list.length; j++)
            {
              //h3内容
              var tmp = $(h3_list[j]).prevAll('h2').first();
            
              if(!tmp.is(h2_list[i]))
                 break;
              var li3_anchor = '<a name="_label' + i + '_' + j + '"></a>';
              $(h3_list[j]).before(li3_anchor);
              li3_content += '<li  style="list-style-type:decimal;font-family: "Arial","Microsoft YaHei","黑体","宋体",sans-serif;"><a href="#_label' + i + '_' + j + '">' + $(h3_list[j]).text().replace(/：/g,"")+'</a></li>';

              //查询h4导航内容遍历----2020-06-06\(^o^)/~
              var li4_content="";//h4遍历的列表数据
              var h4_list = $(h3_list[j]).nextAll("h4");
              //数据遍历
              for(var y=0;y<h4_list.length;y++)
              {
                 //获取第一组h4的值
                var tmp4= $(h4_list[y]).prevAll('h3').first();
                     
                   //当遍历内容不等于该h3目录下的值时
                if(!tmp4.is(h3_list[j]))
                   break;

                var li4_anchor = '<a name="_label' +i+'_'+j+ '_' +y+ '"></a>';
                 //插入对应的索引
                $(h4_list[y]).before(li4_anchor);
                li4_content += '<li style="list-style-type:lower-alpha"><a href="#_label' +i+'_' +j+ '_' + y+ '">' + $(h4_list[y]).text() + '</a></li>';
               }

              //console.log("h4遍历结束了");
              //h4遍历查询结束
              if(li4_content.length>0)
              {
                li3_content+="<ul>"+li4_content+"</ul></li>";
              }
              else
              {
                 li3_content+="</li>";
              }
            }
            
            var li2_content = '';
            if(li3_content.length > 0)
                li2_content = '<li style="list-style-type:square"><a href="#_label' + i + '">' + $(h2_list[i]).text().replace(/：/g,"")+'</a><ul>' + li3_content + '</ul></li>';
            else
                li2_content = '<li style="list-style-type:square"><a href="#_label' + i + '">' + $(h2_list[i]).text().replace(/：/g,"")+'</a></li>';
            content += li2_content;
        }

        content += '</ul>';
        content += '</div><p>&nbsp;</p>';
        content+='<p style="font-size:18px"><b>文章正文：</b></p>';
        if($('#cnblogs_post_body').length != 0 )
        {
            $($('#cnblogs_post_body')[0]).prepend(content);
        }
    }   
}

GenerateContentList();
console.warn("想要突破自己，就要时刻的鞭策自己，我是大姚，一个永不认输的男人！！");
</script>