<script language =javascript > var curIndex=0; //时间间隔 单位毫秒 var timeInterval=5000; var arr=new Array(); arr[0]="1.jpg"; arr[1]="2.jpg"; arr[2]="3.jpg"; arr[3]="4.jpg"; arr[4]="5.jpg"; arr[5]="6.jpg"; arr[6]="7.jpg"; setInterval(changeImg,timeInterval); function changeImg() { var obj=document.getElementById("showpic"); if (curIndex==arr.length-1) { curIndex=0; } else { curIndex+=1; } obj.src="image/"+arr[curIndex]; } </script> <img src="image/1.jpg" width="427" height="219" id="showpic" />