图片的等比例缩放
项目需求：固定长宽的容器，要求放入合适大小的图片（图片大的等比例缩小；图片小的等比例放大）
下列示例代码：
//<div><img src="http://dsb.66wz.com/images/2007-11/09/119454094354649494160708476276.jpg" onload="autoResizeImage(200,100,this)"></div>function autoResizeImage(max_Width,max_Height,imgObj) { var image = new Image(); image.src = imgObj.src; var cur_w = image.width; var cur_h = image.height; var radio = 1; var w_radio = max_Width/cur_w; var h_radio = max_Height/cur_h; if(max_Width == 0 || max_Height == 0) { radio = 1; }else { radio = w_radio <=h_radio ? w_radio :h_radio; } imgObj.width = cur_w * radio; imgObj.height = cur_h * radio; }TAG:
