现在比较流行的三级菜单，京东商城，淘宝网效果等等。（修正版）
生活随笔
收集整理的這篇文章主要介紹了
现在比较流行的三级菜单，京东商城，淘宝网效果等等。（修正版）
小編覺得挺不錯的,現在分享給大家,幫大家做個參考.
首先想關注過我的朋友們表示歉意。由于疏忽文章寫的有點雜亂。修正我整理了一下。代碼不是主要的在于一些話的分享。技術只是拋磚引玉了一下。
順便和大家分享一些文字。
先看一下效果圖產品端點效應：兩個端點的產品更容易快速形成品牌及規模效益：一是高端產品，鎖定奢侈消費，高投稿高價值高回報。二是簡易產品，不追求附加值，僅滿足客戶基本需求，如快捷酒店只提睡眠%2B洗澡%2B上網%2B早餐。很簡單，但卻占領了龐大市場份額，低投入低價值低回報，但可以快速復
View Code 頁面
?1?<div?class='allsort'>
?2?????????????????????<div?class='mt'>
?3?????????????????????????<strong>導航菜單</strong>
?4?????????????????????</div>
?5?????????????????????<div?class='mc'>
?6?????????????????????????<asp:Repeater?ID="BigMenu"?runat="server"?OnItemDataBound="BigMenu_ItemDataBound"
?7?????????????????????????????EnableViewState="false">
?8?????????????????????????????<ItemTemplate>
?9?????????????????????????????????<div?class='item?'>
10?????????????????????????????????????<span>?<h3>??<a?href="#">?<%#Eval("menu_name")?%></a></h3>??</span>//第一級
11?????????????????????????????????????<div?class='i-mc'>
12?????????????????????????????????????????<div?class='subitem'>
13?????????????????????????????????????????????<asp:Repeater?ID="MinMenu"?runat="server"?OnItemDataBound="MinMenu_ItemDataBound"??EnableViewState="false">
14?????????????????????????????????????????????????<ItemTemplate>
15?????????????????????????????????????????????????????<dl?class="fore">?<dt?><a?href="#">???<%#Eval("sub_name")%></a></dt>
16?????????????????????????????????????????????????????<dd><em><a?href="#">
17?????????????????????????????????????????????????????????????????<asp:Repeater?ID="MinMenu2"?runat="server"?EnableViewState="false">//第二級
18?????????????????????????????????????????????????????????????????????<ItemTemplate>
19???????????????????????????????????????????????????????????????????????<a?href="#"?onclick="fn_getmenu1('<%#Eval("menu_name")%>','<%#Eval("menu_code")+"?menuId="+Eval("menu_id")+(Eval("open_parameter")!=""???"&"+Eval("open_parameter")?:?"")%>','<%#Eval("menu_id")%>','<%#Eval("open_type")%>')">//?第三級
20?????????????????????????????????????????????????????????????????????????????<%#Eval("menu_name")%>
21?????????????????????????????????????????????????????????????????????????</a>
22??????????????????????????????????????????????????????????????????<%#((Container.ItemIndex?+?1)?%?4)?==?0???"<br/>"?:?""?%>?//?控制每行顯示多少個
23?????????????????????????????????????????????????????????????????????</ItemTemplate>
24?????????????????????????????????????????????????????????????????</asp:Repeater>
25?????????????????????????????????????????????????????????????</a></em>
26?????????????????????????????????????????????????????????</dd>
27?????????????????????????????????????????????????????</dl>
28?????????????????????????????????????????????????</ItemTemplate>
29?????????????????????????????????????????????</asp:Repeater>
30?????????????????????????????????????????</div>
31?????????????????????????????????????</div>
32?????????????????????????????????</div>
33?????????????????????????????</ItemTemplate>
34?????????????????????????</asp:Repeater>
35?
36?????????????????????????<script?type="text/javascript">
37?????????????????????????????$(".allsort").hoverForIE6({?current:?"allsorthover",?delay:?150?});
38?????????????????????????????$(".allsort?.item").hoverForIE6({?delay:?150?});
39?????
經驗是創新的天敵，往往因有經驗而散漫傲物，就因為這經驗，而令其思維陷入固定的模式中無法突破，經驗這東西成事不足，敗事有余，經驗只能作為進入某個領域的基礎，而不能作為權衡人才的標準。根據左右機構觀察，70%的創新來自于無經驗人士，有經驗只能做縱深研究，無法橫向貫通。
做營銷只需要做好兩件事：研究客戶和研究對手。研究客戶，知道客戶想要什么，不喜歡什么，從而開發出適銷對路的產品；研究View Code js腳本：
(function($)?{?$.extend($.browser,?{?client:?function()?{?return?{?width:?document.documentElement.clientWidth,?height:?document.documentElement.clientHeight,?bodyWidth:?document.body.clientWidth,?bodyHeight:?document.body.clientHeight?};?},?scroll:?function()?{?return?{?width:?document.documentElement.scrollWidth,?height:?document.documentElement.scrollHeight,?bodyWidth:?document.body.scrollWidth,?bodyHeight:?document.body.scrollHeight,?left:?document.documentElement.scrollLeft,?top:?document.documentElement.scrollTop?+?document.body.scrollTop?};?},?screen:?function()?{?return?{?width:?window.screen.width,?height:?window.screen.height?};?},?isIE6:?$.browser.msie?&&?$.browser.version?==?6,?isMinW:?function(val)?{?return?Math.min($.browser.client().bodyWidth,?$.browser.client().width)?<=?val;?},?isMinH:?function(val)?{?return?$.browser.client().height?<=?val;?}?})?})(jQuery);?(function($)?{?$.widthForIE6?=?function(option)?{?var?s?=?$.extend({?max:?null,?min:?null,?padding:?0?},?option?||?{});?var?init?=?function()?{?var?w?=?$(document.body);?if?($.browser.client().width?>=?s.max?+?s.padding)?{?w.width(s.max?+?"px");?}?else?if?($.browser.client().width?<=?s.min?+?s.padding)?{?w.width(s.min?+?"px");?}?else?{?w.width("auto");?}?};?init();?$(window).resize(init);?}?})(jQuery);
(function($)?{?$.fn.hoverForIE6?=?function(option)?{?var?s?=?$.extend({?current:?"hover",?delay:?1000?},?option?||?{});?$.each(this,?function()?{?var?timer1?=?null,?timer2?=?null,?flag?=?false;?$(this).bind("mouseover",?function()?{?if?(flag)?{?clearTimeout(timer2);?}?else?{?var?_this?=?$(this);?timer1?=?setTimeout(function()?{?_this.addClass(s.current);?flag?=?true;?},?s.delay);?}?}).bind("mouseout",?function()?{?if?(flag)?{?var?_this?=?$(this);?timer2?=?setTimeout(function()?{?_this.removeClass(s.current);?flag?=?false;?},?s.delay);?}?else?{?clearTimeout(timer1);?}?})?})?}?})(jQuery);
(function($)?{
????$.extend({?_jsonp:?{?scripts:?{},?counter:?1,?head:?document.getElementsByTagName("head")[0],?name:?function(callback)?{
????????var?name?=?'_jsonp_'?+?(new?Date).getTime()?+?'_'?+?this.counter;?this.counter++;
????????var?cb?=?function(json)?{?eval('delete?'?+?name);?callback(json);?$._jsonp.head.removeChild($._jsonp.scripts[name]);?delete?$._jsonp.scripts[name];?};?eval(name?+?'?=?cb');?return?name;
????},?load:?function(url,?name)?{?var?script?=?document.createElement('script');?script.type?=?'text/javascript';?script.charset?=?this.charset;?script.src?=?url;?this.head.appendChild(script);?this.scripts[name]?=?script;?}?
},?getJSONP:?function(url,?callback)?{
????var?name?=?$._jsonp.name(callback);?
var?url?=?url.replace(/{callback};/,?name);?$._jsonp.load(url,?name);?return?this;?}?});?})(jQuery);
(function($)?{
????$.fn.jdTab?=?function(option,?callback)?{
????????if?(typeof?option?==?"function")?{?callback?=?option;?option?=?{};?};
????????var?s?=?$.extend({?type:?"static",?auto:?false,?source:?"data",?event:?"mouseover",?currClass:?"curr",?tab:?".tab",?content:?".tabcon",?itemTag:?"li",?stay:?5000,?delay:?100,?mainTimer:?null,?subTimer:?null,?index:?0?},?option?||?{});
????????var?tabItem?=?$(this).find(s.tab).eq(0).find(s.itemTag),?contentItem?=?$(this).find(s.content);?if?(tabItem.length?!=?contentItem.length)?return?false;
????????var?reg?=?s.source.toLowerCase().match(/http:\/\/|\d|\.aspx|\.ascx|\.asp|\.php|\.html\.htm|.shtml|.js|\W/g);
????????var?init?=?function(n,?tag)?{?s.subTimer?=?setTimeout(function()?{?hide();?if?(tag)?{?s.index++;?if?(s.index?==?tabItem.length)?s.index?=?0;?}?else?{?s.index?=?n;?};?s.type?=?(tabItem.eq(s.index).attr(s.source)?!=?null)???"dynamic"?:?"static";?show();?},?s.delay);?};
????????var?autoSwitch?=?function()?{?s.mainTimer?=?setInterval(function()?{?init(s.index,?true);?},?s.stay);?};
????????var?show?=?function()?{
????????????tabItem.eq(s.index).addClass(s.currClass);?switch?(s.type)?{
????????????????default:?case?"static":
????????????????????var?source?=?"";?break;?case?"dynamic":
????????????????????var?source?=?(reg?==?null)???tabItem.eq(s.index).attr(s.source)?:?s.source;?tabItem.eq(s.index).removeAttr(s.source);?break;
????????????};?if?(callback)?{?callback(source,?contentItem.eq(s.index),?s.index);?};?contentItem.eq(s.index).show();
????????};?
???var?hide?=?function()?{?tabItem.eq(s.index).removeClass(s.currClass);?contentItem.eq(s.index).hide();?};?tabItem.each(function(n)?{?$(this).bind(s.event,?function()?{?clearTimeout(s.subTimer);?clearInterval(s.mainTimer);?init(n,?false);?return?false;?}).bind("mouseleave",?function()?{?if?(s.auto)?{?autoSwitch();?}?else?{?return;?}?})?});?if?(s.type?==?"dynamic")?{?init(s.index,?false);?};?if?(s.auto)?{?autoSwitch();?}?}?})(jQuery);
(function($)?{
????$.fn.jdSlide?=?function(option)?{
????????var?settings?=?$.extend({?width:?null,?height:?null,?pics:?[],?index:?0,?type:?"num",?current:?"curr",?delay1:?200,?delay2:?8000?},?option?||?{});?var?element?=?this;?var?timer1,?timer2,?timer3,?flag?=?true;?var?total?=?settings.pics.length;?var?init?=?function()?{?var?img?=?"<ul?style='position:absolute;top:0;left:0;'><li><a?href='"?+?settings.pics[0].href?+?"'?target='_blank'><img?src='"?+?settings.pics[0].src?+?"'?width='"?+?settings.width?+?"'?height='"?+?settings.height?+?"'?/></a></li></ul>";?element.css({?"position":?"relative"?}).html(img);?$(function()?{?delayLoad();?})?};?init();?var?initIndex?=?function()?{?var?indexs?=?"<div>";?var?current;?var?x;?for?(var?i?=?0;?i?<?total;?i++)?{?current?=?(i?==?settings.index)???settings.current?:?"";?switch?(settings.type)?{?case?"num":?x?=?i?+?1;?break;?case?"string":?x?=?settings.pics[i].alt;?break;?case?"image":?x?=?"<img?src='"?+?settings.pics[i].breviary?+?"'?/>";?default:?break;?};?indexs?+=?"<span?class='"?+?current?+?"'><a?href='"?+?settings.pics[i].href?+?"'?target='_blank'>"?+?x?+?"</a></span>";?};?indexs?+=?"</div>";?element.append(indexs);?element.find("span").bind("mouseover",?function(e)?{?clearInterval(timer1);?clearInterval(timer3);?var?index?=?element.find("span").index(this);?if?(index?==?settings.index)?{?return;?}?else?{?timer3?=?setInterval(function()?{?if?(flag)?running(parseInt(index));?},?settings.delay1);?}?}).bind("mouseleave",?function(e)?{?clearInterval(timer3);?timer1?=?setInterval(function()?{?running(settings.index?+?1,?true);?},?settings.delay2);?})?};?var?running?=?function(index,?tag)?{
????????????if?(index?==?total)?{?index?=?0;?};?element.find("span").eq(settings.index).removeClass(settings.current);?element.find("span").eq(index).addClass(settings.current);?timer2?=?setInterval(function()?{
????????????????var?pos_y?=?parseInt(element.find("ul").get(0).style.top);
????????????????var?pos_a?=?Math.abs(pos_y?+?settings.index?*?settings.height);
????????????????var?pos_b?=?Math.abs(index?-?settings.index)?*?settings.height;
????????????????var?pos_c?=?Math.ceil((pos_b?-?pos_a)?/?4);?if?(pos_a?==?pos_b)?{?clearInterval(timer2);?if?(tag)?{?settings.index++;?if?(settings.index?==?total)?{?settings.index?=?0;?}?}?else?{?settings.index?=?index;?};?flag?=?true;?}?else?{?if?(settings.index?<?index)?{?element.find("ul").css({?top:?pos_y?-?pos_c?+?"px"?});?}?else?{?element.find("ul").css({?top:?pos_y?+?pos_c?+?"px"?});?};?flag?=?false;?}?
????????????},?10);
????????};?
?var?delayLoad?=?function()?{?var?img?=?"";?for?(var?i?=?1;?i?<?total;?i++)?{?img?+=?"<li><a?href='"?+?settings.pics[i].href?+?"'?target='_blank'><img?src='"?+?settings.pics[i].src?+?"'?width='"?+?settings.width?+?"'?height='"?+?settings.height?+?"'?/></a></li>";?};?element.find("ul").append(img);?timer1?=?setInterval(function()?{?running(settings.index?+?1,?true);?},?settings.delay2);?if?(settings.type)?initIndex();?};?}?})(jQuery);
??對手，掌握敵我優劣勢，知道何時應該圍而不打，何時隔而不圍，何時吃一個、挾一個、看一個，何時進攻、何時撤退轉移，何時打局部戰，何時打全殲戰。
夏天總嫌床太小，而冬天卻總感覺到床太大了，做營銷就要認識到這種不同時段不同季節下的客戶的不同需求，要認識到市場是隨時在發生變化的，銷售要因季節的變化而變化，所謂策略，是指某個階段的謀劃，而并非一策到底。
View Code CSS樣式：
html,?body,?div,?span,?iframe,?h1,?h2,?h3,?h4,?h5,?h6,?p,?blockquote,?pre,?a,?address,?big,?cite,?code,?del,?em,?font,?img,?ins,?small,?strong,?var,?b,?u,?i,?center,?dl,?dt,?dd,?ol,?ul,?li,?fieldset,?form,?label,?legend
{
????margin:?0;?padding:?0;
}
ol,?ul{??list-style:?none;}
:focus{???outline:?0;}
a?img{???border:?0;}
img{??vertical-align:?middle;?}
table{???empty-cells:?show;??width:?100%;??height:?24px;}
ins{???text-decoration:?none;}
del{???text-decoration:?line-through;}
em{???font-style:?normal;}
.fl{???float:?left;}
.fr{???float:?right;}
?.fn{???float:?none;}
.al{???text-align:?left;}
.ac{???text-align:?center;}
.ar{??text-align:?right;}
.clr
{
????display:?block;
????overflow:?hidden;
????clear:?both;
????height:?0;
????line-height:?0;
????font-size:?0;
}
.clearfix:after
{
????content:?".";
????display:?block;
????height:?0;
????clear:?both;
????visibility:?hidden;
}
.clearfix{??display:?inline-table;}
/*?Hides?from?IE-mac?\*/*html?.clearfix{??height:?1%;}
.clearfix{display:?block;}
/*?End?hide?from?IE-mac?*/*?+?html?.clearfix{??min-height:?1%;}
.overflow{???overflow:?hidden;}
.form?label,?.form?input,?.form?select,?.form?textarea,?.form?button,?.form?.label
{
????float:?left;
????font-size:?12px;
}
.block{?display:?block;???overflow:?hidden;??cursor:?pointer;}
.hide{??display:?none;}
.invisible{???visibility:?hidden;}
.tab{??overflow:?hidden;???zoom:?1;}
.tab?li,?.tab?a,?.tab-item
{??float:?left;?
????cursor:?pointer;
?????text-align:?center;
?????}
.m,?.mt,?.mc,?.mb{?overflow:?hidden;???zoom:?1;}
.mt?.extra{??float:?right;}
.m{???margin-bottom:?10px;}
.btn-img{cursor:?pointer;???margin:?0;?padding:?0;??border:?0;?text-align:?center;}
.btn-text{??cursor:?pointer;??margin:?0;?padding:?0;?text-align:?center;}
/*text*/
body{???font-family:?"宋體"?,Arial,Lucida,Verdana,Helvetica,sans-serif;?font-size:?12px;??color:?#333;?line-height:?150%;???background:?#fff;}
h1{?font-size:?20px;font-family:?Arial,Lucida,Verdana,?"宋體"?,Helvetica,sans-serif;}
h2{??font-size:?14px;}
h3{???font-size:?14px;}
h4{???font-size:?12px;}
h5{???font-size:?12px;}
h6{???font-size:?12px;}
/*link*/
a:link,?a:visited{??color:?#333;??text-decoration:?none;}
a:hover{?color:?#c00;???text-decoration:?underline;}
#header{??margin-bottom:?7px;????height:?22px;}
/*allsort*/
/*?定位?*/?
.allsort
{
????float:?left;
????????width:?141px;
????????height:?600px;
????????margin-right:?4px;
????????background-color?:#D2E0F2;
????????background:?no-repeat?0?-166px;
????????position:??relative;
????????z-index:?11;
????left:?9px;
????top:?56px;
?????background?:?url(../Login/dl-Image/1-3-150.jpg)?repeat-y;
?????
}
.allsort?.mt
{
????height:?25px;
????width:?141px;
????line-height:?25px;
????background:?url(../Login/dh/1-2-h.jpg)?no-repeat;?
????cursor:?pointer;
????
}
/*?<strong>導航菜單</strong>字體控制*/
.allsort?.mt?strong
{
????float:?left;
????font-size:?14px;
????color:?#630;
????width:?140px;
????height:?25px;
???text-align?:center;
}
#o-search?.allsort?.mt?a
{
????color:?#630;
}
.allsort?.mt?.extra
{
????display:?none;
}
/*大菜單單框?*/
.allsort?.mc
{
????border:?0px?solid?#D2E0F2;
????position:?absolute;
????????top:?30px;
????????????overflow:?visible;
????????width:?135px;
????????????padding:?0?3px?0;
????????????-moz-border-radius:?0?0?0px?0px;
????????????-webkit-border-radius:?0?0?0px?0px;
???left?:-3px;
????height:?315px;
}
.allsort?.item
{
????width:?140px;
????height:?33.5px;
????background:?url(../Login/dh/1-2-33px.jpg)?no-repeat;
????border-top:?0px?solid?#f4f3f0;
}
.allsort?.fore
{
????
????border-top:?none;
}
.allsort?span
{
????
????display:?block;
????width:?150px;
????position:?relative;
????z-index:?1;
}
/*?導航字體、長和高?*/
.allsort?h3
{
????width:?98px;
????height:?31px;
????padding-left:?40px;
????border:?0px?solid?#DCF1F0;
????border-width:?0px?0?0px?0px;
????background:?no-repeat?-318px?-240px;
????font-weight:?normal;
}
.allsort?h3?a:link,?.allsort?h3?a:visited
{
?
????display:?block;
????height:?30px;
????line-height:?30px;
????color:?#333;
}
.allsort?h3?a:hover,?.allsort?h3?a:active
{
????color:?#f6b704;
}
.allsort?s
{
????display:?block;
????position:?absolute;
????top:?10px;
????left:?182px;
????width:?13px;
????height:?13px;
????background:?no-repeat?-274px?-216px;
}
/*??邊框顏色*/
.allsort?.item?.i-mc
{
????display:?none;
????position:?absolute;
????left:?141px;
????top:?0;
????width:420px;
????border:?1px?solid?#f6b704;
????background?:?url(../Login/dl-Image/1-3-488px.jpg)?;
????overflow:?hidden;
}
.allsort?.item?dt
{
????padding:??3px?10px?0?0;
????font-weight:?bold;
}
.allsort?.item?dd
{
????padding:?3px?0?0;
????overflow:?hidden;
????zoom:?1;
}
.allsort?.subitem
{
????float:?left;
????width:?500px;
????min-height:?370px;
????padding:?0?4px?0?8px;
}
.subitem.left
{
????float:left?;
????width?:550px;
????height?:70px;
????display:?none;
????position:?absolute;
????
}
.allsort?.subitem?dl
{
????border-top:?0px?solid?#f6b704;
????padding:?6px?0;
????overflow:?hidden;
????zoom:?1;
}
.allsort?.subitem?.fore
{
????border-top:?none;
}
/*?二級菜單控制*/
.allsort?.subitem?dt
{
????float:?left;
????width:65px;
????line-height:?22px;
????text-align:?right;
}
.allsort?.subitem?dd
{
????float:?left;
????width:?380px;
}
/*?二級菜單顏色控制*/
.allsort?.subitem?dt?a
{
????color:?#c00;
}
/*設置功能列表分割標示*/
.allsort?.subitem?dd?a
{
????border-right?:#f6b704?1px?solid;
??????border-left::#f6b704?1px?solid;
????padding:?0?5px;
????margin-bottom:?5px;
????text-decoration:?underline;
????display:?inline-block;
????line-height:?15px;
}
/*去掉后會換行????
.allsort?.subitem?em
{
????float:?left;
????height:?14px;
????margin:?4px?0;
????line-height:?14px;
????padding:??0?10px;
????border-left:?0px?solid?#f6b704;
}????*/
#o-search?.allsort?.subitem?dt?a
{
????color:?#c00;
???
}
#o-search?.allsort?.subitem?dd?a
{
????white-space:?pre-wrap?;
}
.allsort?.fr
{
????background:?#fff;
????width:?176px;
????padding-bottom:?2010px;
????margin-bottom:?-2000px;
}
.allsort?.fr?dl
{
????padding-bottom:?0;
}
#o-search?.allsort?.fr?a
{
????color:?#666;
}
.allsort?.brands
{
????width:?140px;
????padding:?6px?8px;
}
.allsort?.brands?em
{
????float:?left;
????width:?80px;
}
.allsort?.brands?dd
{
????padding-top:?6px;
????line-height:?20px;
}
.allsort?.promotion
{
????width:?140px;
????padding:?6px?8px;
}
.allsort?.promotion?dd
{
????padding-top:?6px;
????line-height:?20px;
}
.allsort?.mc?.extra
{
????padding:?7px?8px;
????background:?#FDF1DE;
????border-top:?0px?solid?#f6b704;
}
#o-search?.allsort?.mc?.extra?a
{
????color:?#c00;
}
/*w為負數時鼠標移上后會會出現底線。*/
.allsorthover
{
????background-position:?0??166px;
}
.allsorthover?.mt?.extra
{
????background-position:?-274px?-190px;
}
.allsorthover?.mc
{
????display:?block;
}
.allsort?.hover?span
{
????z-index:?13;
????width:?140px;
}
/*?鼠標移動上去后大菜單變化樣式*/
.allsort?.hover?h3
{
????border:?solid?#f6b704;
????border-width:?1px?0?1px?1px;
????overflow:?hidden;
????background:?#FFF9EF?no-repeat?-318px?-172px;
????font-weight:?bold;
}
.allsort?.hover?s
{
????display:?none;
}
.allsort?.hover?.i-mc
{
????display:?block;
????z-index:?12;
}
*html?.allsort?.item?dd
{
????padding-bottom:?6px;
}
調查研究表明：1、人們擔憂的事情40%從未發生過；2、30%的憂慮是過去發生過的事情，是無法改變的；3、12%的憂慮集中于別人出于自卑感而作出的批評，這些憂慮是多余的；4、10%的憂慮是那些瑣碎的事情；5、只有8%的憂慮可以列入“合理”的范圍，而8%當中有4%的事情是完全不能控制的。
85%的快樂由人際關系決定，僅15%的快樂來自于個人成就。人95%的時間是無聊、苦悶、孤獨、落寞、煩悶、平淡的，只有5%的時間是風光的。所以，我們要學會處理好人際關系，學會忍受平淡無奇的生活。
?
?
轉載于:https://www.cnblogs.com/liaoqiang/archive/2011/04/22/2025096.html
總結
以上是生活随笔為你收集整理的现在比较流行的三级菜单，京东商城，淘宝网效果等等。（修正版）的全部內容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： 如何成为php高手
- 下一篇： 主流存储网络类型分析