Kaedah JavaScript untuk mencapai kesan pengembangan lapisan selepas kemahiran click

Kaedah JavaScript untuk mencapai kesan pengembangan lapisan selepas kemahiran click_javascript tetikus

WBOY

Lepaskan： 2016-05-16 15:59:23

asal

1110 orang telah melayarinya

Contoh dalam artikel ini menerangkan cara menggunakan JavaScript untuk mencapai kesan pengembangan lapisan selepas klik tetikus. Kongsikan dengan semua orang untuk rujukan anda. Analisis khusus adalah seperti berikut:

Kod JavaScript ini boleh merealisasikan fungsi mengembangkan lapisan selepas klik tetikus Kod ini agak rumit dan memberi tumpuan kepada pembelajaran dan penyelidikan Jika anda berminat, anda boleh mengubah suai dan memudahkannya.

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>层展开折叠</title>
</head>
<body>
<style type="text/css">
DIV.clTopMenu{
 position:absolute;
 width:101;
 height:150;
 clip:rect(0,101,14,0);
 visibility:hidden;
 z-index:31;
 layer-background-color:#EEEEEE;
 background-color:#00CCFF
}
DIV.clTopMenuBottom{
 position:absolute;
 width:101;
 height:3;
 clip:rect(0,101,3,0);
 top:11;
 layer-background-color:#CECFCE;
 background-color:#000099;
 z-index:2
}
DIV.clTopMenuText{
 position:absolute;
 width:91;
 left:5;
 top:15;
 font-family:"Arial", "Helvetica", "sans-serif";
 font-size:9pt;
 background-color:#EEEEEE;
 z-index:1;
 color: #000000
} 
a:link {
 color: #000000;
 text-decoration: none
}
</style>
<script language="JavaScript" type="text/javascript">
function lib_bwcheck(){ //Browsercheck (needed)
 this.ver=navigator.appVersion
 this.agent=navigator.userAgent
 this.dom=document.getElementById&#63;1:0
 this.opera5=this.agent.indexOf("Opera 5")>-1
 this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)&#63;1:0; 
 this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)&#63;1:0;
 this.ie4=(document.all && !this.dom && !this.opera5)&#63;1:0;
 this.ie=this.ie4||this.ie5||this.ie6
 this.mac=this.agent.indexOf("Mac")>-1
 this.ns6=(this.dom && parseInt(this.ver) >= 5) &#63;1:0; 
 this.ns4=(document.layers && !this.dom)&#63;1:0;
 this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
 return this
}
var bw=new lib_bwcheck()
nPlace=0
var nNumberOfMenus=2
var nMwidth=101
var nPxbetween=20
var nFromleft=10 
var nFromtop=20
var nBgcolor='#CECFCE' 
var nBgcolorchangeto='#6380BC' 
var nImageheight=11 
function makeNewsMenu(obj,nest){
 nest=(!nest) &#63; "":'document.'+nest+'.'     
   this.css=bw.dom&#63; document.getElementById(obj).style:bw.ie4&#63;document.all[obj].style:bw.ns4&#63;eval(nest+"document.layers." +obj):0;  
 this.evnt=bw.dom&#63; document.getElementById(obj):bw.ie4&#63;document.all[obj]:bw.ns4&#63;eval(nest+"document.layers." +obj):0;   
 this.scrollHeight=bw.ns4&#63;this.css.document.height:this.evnt.offsetHeight
 this.moveIt=b_moveIt;this.bgChange=b_bgChange;
 this.slideUp=b_slideUp; this.slideDown=b_slideDown;
 this.clipTo=b_clipTo;
  this.obj = obj + "Object";  eval(this.obj + "=this")  
}
function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x; this.css.top=this.y}
function b_bgChange(color){if(bw.dom || bw.ie4) this.css.backgroundColor=color; else this.css.bgColor=color}
function b_clipTo(t,r,b,l){
 if(bw.ns4){this.css.clip.top=t; this.css.clip.right=r; this.css.clip.bottom=b; this.css.clip.left=l
 }else this.css.clip="rect("+t+","+r+","+b+","+l+")";
}
function b_slideUp(ystop,moveby,speed,fn,wh){
 if(!this.slideactive){
  if(this.y>ystop){
   this.moveIt(this.x,this.y-5); eval(wh)
   setTimeout(this.obj+".slideUp("+ystop+","+moveby+","+speed+",'"+fn+"','"+wh+"')",speed)
  }else{
   this.slideactive=false; this.moveIt(0,ystop); eval(fn)
  }
 }
}
function b_slideDown(ystop,moveby,speed,fn,wh){
 if(!this.slideactive){
  if(this.y<ystop){
   this.moveIt(this.x,this.y+5); eval(wh)
   setTimeout(this.obj+".slideDown("+ystop+","+moveby+","+speed+",'"+fn+"','"+wh+"')",speed)
  }else{
   this.slideactive=false; this.moveIt(0,ystop); eval(fn)
  }
 }
}
function newsMenuInit(){
 oTopMenu=new Array()
 zindex=10
 for(i=0;i<=nNumberOfMenus;i++){
  oTopMenu[i]=new Array()
  oTopMenu[i][0]=new makeNewsMenu('divTopMenu'+i)
  oTopMenu[i][1]=new makeNewsMenu('divTopMenuBottom'+i,'divTopMenu'+i)
  oTopMenu[i][2]=new makeNewsMenu('divTopMenuText'+i,'divTopMenu'+i)
  oTopMenu[i][1].moveIt(0,nImageheight)
  oTopMenu[i][0].clipTo(0,nMwidth,nImageheight+3,0)
  if(!nPlace) oTopMenu[i][0].moveIt(i*nMwidth+nFromleft+(i*nPxbetween),nFromtop)
  else{
   oTopMenu[i][0].moveIt(nFromleft,i*nImageheight+nFromtop+(i*nPxbetween))
   oTopMenu[i][0].css.zIndex=zindex--
  }
  oTopMenu[i][0].css.visibility="visible"
 }
}
function topMenu(num){
 if(oTopMenu[num][1].y==nImageheight) oTopMenu[num][1].slideDown(oTopMenu[num][2].scrollHeight+20,10,40,'oTopMenu['+num+'][0].clipTo(0,nMwidth,oTopMenu['+num+'][1].y+3,0)','oTopMenu['+num+'][0].clipTo(0,nMwidth,oTopMenu['+num+'][1].y+3,0)')
 else if(oTopMenu[num][1].y==oTopMenu[num][2].scrollHeight+20) oTopMenu[num][1].slideUp(nImageheight,10,40,'oTopMenu['+num+'][0].clipTo(0,nMwidth,oTopMenu['+num+'][1].y+3,0)','oTopMenu['+num+'][0].clipTo(0,nMwidth,oTopMenu['+num+'][1].y+3,0)')
}
function menuOver(num){oTopMenu[num][1].bgChange(nBgcolorchangeto)}
function menuOut(num){oTopMenu[num][1].bgChange(nBgcolor)}
onload=newsMenuInit;
</script>
<div id="divTopMenu0" class="clTopMenu" align="center" style="height: 170; left: 20; top: 20"><span class="css3"><a href="#" onMouseOver="menuOver(0)" onMouseOut="menuOut(0)" onClick="topMenu(0); if(bw.dom || bw.ie4)this.blur(); return false">点击展开</a>
 </span> 
 <div id="divTopMenuText0" class="clTopMenuText">
 <span class="css3">
 鼠标点击后层展开JavaScript鼠标点击后层展开JavaScript。
 </span>
 </div>
 <div id="divTopMenuBottom0" class="clTopMenuBottom" style="top: 11; height: 10"></div>
</div>
</div>
</body>
</html>

Salin selepas log masuk

Saya harap artikel ini akan membantu reka bentuk pengaturcaraan JavaScript semua orang.