每隔一定时间跟换图片
Img = new Array("image/2.jpg","image/1.jpg","image/3.jpg","image/4.jpg"); size = Img.length; i = 0; function chImg(){ picID.src = Img[i]; i++; if (i>=size) i = 0; setTimeout("chImg()",1000); } <body onLoad="chImg()"> <img id="picID"> </body>