CSDN中根据文章自动生成文章目录

$(document).ready(function() {
    buildCTable();
    });

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    var hs = $(‘#cnblogs_post_body‘).find(‘h1,h2,h3,h4,h5,h6‘);
    if (hs.length < 2)
        return;
    var s = ‘‘;
    s += ‘<div style="clear:both"></div>‘;
    s += ‘<div class="cnblogs_toc">‘;
    s += ‘<p style="text-align:right;margin:0;"><span style="float:left;">目录<a href="#" title="系统根据文章中H1到H6标签自动生成文章目录">(?)</a></span><a href="#" onclick="javascript:return openct(this);" title="展开">[+]</a></p>‘;
    s += ‘<ol style="display:none;margin-left:14px;padding-left:14px;line-height:160%;">‘;
    var old_h = 0, ol_cnt = 0;
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        var tit = hs.eq(i).text().replace(/^\d+[.、\s]+/g, ‘‘);
        tit = tit.replace(/[^a-zA-Z0-9_\-\s\u4e00-\u9fa5]+/g, ‘‘);

        if (tit.length < 100) {
            s += ‘<li><a href="#t‘ + i + ‘">‘ + tit + ‘</a></li>‘;
            hs.eq(i).html(‘<a name="t‘ + i + ‘"></a>‘ + hs.eq(i).html());
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    while (ol_cnt > 0) {
        s += ‘</ol>‘;
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    s += ‘</ol></div>‘;
    s += ‘<div style="clear:both"><br></div>‘;
    $(s).insertBefore($(‘#cnblogs_post_body‘));
}

function openct(e) {
    if (e.innerHTML == ‘[+]‘) {
        $(e).attr(‘title‘, ‘收起‘).html(‘[-]‘).parent().next().show();
    } else {
        $(e).attr(‘title‘, ‘展开‘).html(‘[+]‘).parent().next().hide();
    }
    e.blur();
    return false;
}

.cnblogs_toc {
   float:left; 
   min-width:200px;
   padding: 4px 10px;
   font-size: 12px; 
   background-color: #eee;
   border: 1px solid #ccc;
}
 
.cnblogs_toc a {
   color: #369;
   border-bottom: 0px;
}

.cnblogs_toc ol {
  
   margin: 5px 14px 5px;
   line-height: 160%;
}

.cnblogs_toc li {
   list-style: decimal;
}