javascript css實現三級目錄(簡單的)

2024-05-04 11:00:57

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是在原先的二級目錄改的,先給出演示

這里是css

/*bg macji(http://www.macji.com)*/ ul,li,p{margin:0; padding:0; list-style:none; font-size:12px} .m_menu_title{height:24px;line-height:24px;text-align:center;margin:0 1px} .m_menu_content{border-top:solid 1px #ccc;padding:8px 2px} /*一級*/ .m_menu_content p{height:22px;line-height:22px} .m_menu_content p a{  color:#666633;  font-weight:bold;  text-decoration:none;  background:url(http://www.macji.com/blog/img/icon.gif) no-repeat 8px 4px;  padding:0 0 0 30px;  display:block } .m_menu_content p a:hover{color:#fe8005;font-weight:bold;text-decoration:none} .m_menu_content p a.on{background-position:8px -18px} /*二級*/ .menu2{} .menu2 li{line-height:22px} .menu2 a{color:#000;  text-decoration:none;  display:block;  padding:0 0 0 40px;  background:url(http://www.macji.com/blog/img/icon.gif) no-repeat 18px 4px } .menu2 a.on{background-position:18px -18px} /*三級*/ .menu2 ul{} .menu2 ul a{  background-position:30px -39px;  padding:0 0 0 50px;  color:#666633;  text-decoration:underline } .menu2 ul a:hover{background-color:#f5f5f5; color:#f60}

目錄是循環的,我給寫死了.下面給出js

/* 這里是直接寫死了,根據傳入的id編號,判斷是否顯示,不顯示就顯示 id編號是有規律的,可用服務器端語言循環出目錄 */ function setMenuList(num){  var p = document.getElementById('p' + num);  var ul = document.getElementById('ul' + num);  if(ul.style.display == ‘none'){  ul.style.display = ”;  p.className = “on”;  }else{  ul.style.display = ‘none';  p.className = “”;  } }

演示查看

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>簡易三級目錄演示</title> <style> <!-- /*bg maiji(http://www.macji.com)*/ ul,li,p{margin:0; padding:0; list-style:none; font-size:12px} .m_menu_title{height:24px;line-height:24px;text-align:center;margin:0 1px} .m_menu_content{border-top:solid 1px #ccc;padding:8px 2px} /*一級*/ .m_menu_content p{height:22px;line-height:22px} .m_menu_content p a{color:#666633;font-weight:bold;text-decoration:none;background:url(http://www.macji.com/blog/img/icon.gif) no-repeat 8px 4px;padding:0 0 0 30px;display:block} .m_menu_content p a:hover{color:#fe8005;font-weight:bold;text-decoration:none} .m_menu_content p a.on{background-position:8px -18px} /*二級*/ .menu2{} .menu2 li{line-height:22px} .menu2 a{color:#000; text-decoration:none; display:block; padding:0 0 0 40px; background:url(http://www.macji.com/blog/img/icon.gif) no-repeat 18px 4px;} .menu2 a.on{background-position:18px -18px} /*三級*/ .menu2 ul{} .menu2 ul a{background-position:30px -39px; padding:0 0 0 50px; color:#666633; text-decoration:underline} .menu2 ul a:hover{background-color:#f5f5f5; color:#f60}             </SPAN>
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