博客园博客自动生成三级目录(generate three levels content using JS in cnblogs)

时间：2015-06-21 01:55:30 阅读：228 评论：0 收藏：0 [点我收藏+]

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博客园博客自动生成三级目录(generate three levels content using JS in cnblogs)

JS代码（JS code)

最近参考了（http://www.cnblogs.com/wangqiguo/p/4355032.html）自动生成目录的方法，我增加了能够自动生成三级目录的JS代码。

I learned from (http://www.cnblogs.com/wangqiguo/p/4355032.html) about generating content using JS in cnblogs. I updated the code to generate three levels content.

 1 <script language="javascript" type="text/javascript">
 2 // Generate  three levels content
 3 function GenerateContentList()
 4 {
 5     var jquery_h1_list = $(‘#cnblogs_post_body h1‘);
 6     if (jquery_h1_list.length == 0) { return; }
 7     if ($(‘#cnblogs_post_body‘).length == 0) { return; }
 8 
 9     var content = ‘<a name="_labelTop"></a>‘;
10     content    += ‘<div id="navCategory">‘;
11     content    += ‘<p style="font-size:18px"><b>阅读目录(Content)</b></p>‘;
12     // first level content start
13     content += ‘<ul class="first_class_ul">‘;
14 
15     for (var i = 0; i < jquery_h1_list.length; i++)
16     {
17         var go_to_top = ‘<div style="text-align: right"><a href="#_labelTop">回到顶部(go to top)</a><a name="_label‘ + i + ‘"></a></div>‘;
18         $(jquery_h1_list[i]).before(go_to_top);
19 
20         // one item of first level content.
21         var li_content = ‘<li><a href="#_label‘ + i + ‘">‘ + $(jquery_h1_list[i]).text() + ‘</a></li>‘;
22 
23         var nextH1Index = i + 1;
24         if (nextH1Index == jquery_h1_list.length) { nextH1Index = 0; }
25         var jquery_h2_list = $(jquery_h1_list[i]).nextUntil(jquery_h1_list[nextH1Index], "h2");
26         // second level content start
27         if (jquery_h2_list.length > 0)
28         {
29             //li_content +=‘<ul style="list-style-type:none; text-align: left; margin:2px 2px;">‘;
30             li_content += ‘<ul class="second_class_ul">‘;
31         }
32         for (var j = 0; j < jquery_h2_list.length; j++)
33         {
34             var go_to_top2 = ‘<div style="text-align: right"><a name="_lab2_‘+ i + ‘_‘ + j + ‘"></a></div>‘;
35             $(jquery_h2_list[j]).before(go_to_top2);
36             // one item of second level content.
37             li_content +=‘<li><a href="#_lab2_‘+ i +‘_‘ + j + ‘">‘ + $(jquery_h2_list[j]).text() + ‘</a></li>‘;
38 
39             var nextH2Index = j + 1;
40             if (nextH2Index == jquery_h2_list.length) { nextH2Index = 0; }
41             var jquery_h3_list = $(jquery_h2_list[i]).nextUntil(jquery_h2_list[nextH2Index], "h3");
42             // third level content start
43             if (jquery_h3_list.length > 0)
44             {
45                 li_content += ‘<ul class="third_class_ul">‘;
46             }
47             for (var k = 0; k < jquery_h3_list.length; k++)
48             {
49                 var go_to_third_Content = ‘<div style="text-align: right"><a name="_label3_‘ + i + ‘_‘ + j + ‘_‘ + k + ‘"></a></div>‘;
50                 $(jquery_h3_list[k]).before(go_to_third_Content);
51                 // one item of third level content.
52                 li_content += ‘<li><a href="#_label3_‘ + i + ‘_‘ + j + ‘_‘ + k + ‘">‘ + $(jquery_h3_list[k]).text() + ‘</a></li>‘;
53             }
54             if (jquery_h3_list.length > 0)
55             {
56                 li_content += ‘</ul>‘;
57             }
58             li_content += ‘</li>‘;
59             // third level content end
60         }
61         if (jquery_h2_list.length > 0)
62         {
63             li_content +=‘</ul>‘;
64         }
65         li_content +=‘</li>‘;
66         // second level content end
67 
68         content += li_content;
69     }
70     // first level content end
71     content += ‘</ul>‘;
72     content += ‘</div>‘;
73 
74     $($(‘#cnblogs_post_body‘)[0]).prepend(content);
75 }
76 
77 GenerateContentList();
78 </script>