js實現交換運動效果的方法,js實現交換效果

來源:互聯網
上載者:User

js實現交換運動效果的方法,js實現交換效果

本文執行個體講述了js實現交換運動效果的方法。分享給大家供大家參考。具體分析如下:

實現後的效果,點擊互相交換位置和距離左邊和上角的資訊。

要點一:

var now = s_pic_li[0];for(var i=0; i<s_pic_li.length; i++){s_pic_li[i].onclick = function(){if(this == now) return false;var w = now.offsetWidth;var h = now.offsetHeight;var l = now.offsetLeft;var t = now.offsetTop;var w1= this.offsetWidth;var h1 = this.offsetHeight;var l1 = this.offsetLeft;var t1 = this.offsetTop;startrun(now,{width:w1,height:h1,left:l1,top:t1});startrun(this,{width:w,height:h,left:l,top:t});now=this;}}

迴圈給每一塊加點擊事件,擷取交換雙方的資訊,然後執行運動函數,相關資訊做為參數。

最後,上代碼:

<!DOCTYPE html><html><head><meta charset="gb2312" /><title>無標題文檔</title><style><!--body,ul,li{margin:0; padding:0;font:18px/1.5 arial; color:#333;}#big_pic{width:500px; height:400px;background:#ccc; text-align:center;position:absolute;}#s_pic li{float:left; width:100px;height:80px; display:inline;background:#06c; text-align:center;position:absolute; top:310px;}--></style><script><!--window.onload = function(){ var s_pic = document.getElementById("s_pic"); var s_pic_li = s_pic.getElementsByTagName("li"); var now = s_pic_li[0]; for(var i=0; i<s_pic_li.length; i++){  s_pic_li[i].onclick = function(){   if(this == now) return false;   var w = now.offsetWidth;   var h = now.offsetHeight;   var l = now.offsetLeft;   var t = now.offsetTop;   var w1= this.offsetWidth;   var h1 = this.offsetHeight;   var l1 = this.offsetLeft;   var t1 = this.offsetTop;   startrun(now,{width:w1,height:h1,left:l1,top:t1});   startrun(this,{width:w,height:h,left:l,top:t});   now=this;  } }}function getstyle(obj,name){ if(obj.currentStyle){  return obj.currentStyle[name]; }else{  return getComputedStyle(obj,false)[name]; }}function startrun(obj,json,fn){ clearInterval(obj.timer); obj.timer = setInterval(function(){  var isall = true;   for(var attr in json){   var cur=0;   if(attr == "opacity"){    cur = Math.round(parseFloat(getstyle(obj,attr))*100);   }else{    cur = parseInt(getstyle(obj,attr));   }   var speed = (json[attr] - cur)/8   speed = speed>0?Math.ceil(speed):Math.floor(speed);   if(cur != json[attr]){    isall = false;   }   if(attr == "opacity"){    obj.style.filter = "alpha(opacity="+(cur+speed)+")";    obj.style.opacity = (cur+speed)/100;   }else{    obj.style[attr] = cur+speed+"px";   }  }  if(isall){   clearInterval(obj.timer);   if(fn){    fn();   }  } },30);}//--></script></head><body><ul id="s_pic"> <li style="left:0; top:0; width:400px; height:300px">0</div> <li style="left:0;">1</li> <li style="left:110px;">2</li> <li style="left:220px;">3</li> <li style="left:330px;">4</li></ul></body></html>

希望本文所述對大家的javascript程式設計有所協助。

聯繫我們

該頁面正文內容均來源於網絡整理,並不代表阿里雲官方的觀點,該頁面所提到的產品和服務也與阿里云無關,如果該頁面內容對您造成了困擾,歡迎寫郵件給我們,收到郵件我們將在5個工作日內處理。

如果您發現本社區中有涉嫌抄襲的內容,歡迎發送郵件至: info-contact@alibabacloud.com 進行舉報並提供相關證據,工作人員會在 5 個工作天內聯絡您,一經查實,本站將立刻刪除涉嫌侵權內容。

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.