Question

为什么我上传到网站的图片（JPG格式）会变形呢？

Answer 1

没按比例缩放
<script language= "JavaScript ">
<!--
//图片按比例缩放
var flag=false;
function DrawImage(ImgD){
var image=new Image();
var iwidth = 120; //定义允许图片宽度
var iheight = 90; //定义允许图片高度
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>