缩放代码： <script type="text/javascript"> //图片按比例缩放 var flag = false; function DrawImage(ImgD, iwidth, iheight) { //参数(图片,允许的宽度,允许的高度) var image = new Image(); image.src = ImgD.src; if (image.width > 0 && image.height > 0) { flag = true; if (image.width / image.height >= iwidth / iheight) { if (image.width > iwidth) { ImgD.width = iwidth; ImgD.height = (image.height * iwidth) / image.width; } else { ImgD.width = image.width; ImgD.height = image.height; } ImgD.alt = image.width + "×" + image.height; } else { if (image.height > iheight) { ImgD.height = iheight; ImgD.width = (image.width * iheight) / image.height; } else { ImgD.width = image.width; ImgD.height = image.height; } ImgD.alt = image.width + "×" + image.height; } } } </script> 页面代码： <img onload="javascript:DrawImage(this,89,63)" src="http://www.1sucai.cn/images/logo.gif" width="89" height="63" border="0" /> 觉得不错的发个言！