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JS例子(大图轮播)

<style type="text/css">*{ margin:0px auto;   padding:0px;   }#wai{ width:1000px;       height:500px;	  }</style>

  

<body>   <div id="wai">   <img class="tu" src="http://www.mamicode.com/1.jpg"  width="1000" height="500"/>   <img class="tu" src="http://www.mamicode.com/2.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/3.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/4.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/5.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/6.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/7.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/8.jpg"  width="1000" height="500" style="display:none"/>   <img class="tu" src="http://www.mamicode.com/9.jpg"  width="1000" height="500" style="display:none"/>   </div></body>

  

</body><script type="text/javascript">var index = 0;var tu = document.getElementsByClassName("tu");huan();function huan(){	    			for( var i=0;i<tu.length;i++){				 tu[i].style.display="none";				}				tu[index].style.display="block";					 if(index >= tu.length-1)		    {index=0;	      }else{			  index++;			  }			  		window.setTimeout("huan()",2000);	  	}				</script>

  

JS例子(大图轮播)