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onload="DrawImage(this,162,125)"
function DrawImage(ImgD,w,h)
{
var image=new Image();
image.src=ImgD.src;
if(image.width>0 && image.height>0)
{
if(image.width/image.height>= w/h)
{
if(image.width>w)
ImgD.width=w;
else
{
ImgD.width=image.width;
ImgD.height=image.height;
}
}
else
{
if(image.height>h)
ImgD.height=h;
else
{
ImgD.width=image.width;
ImgD.height=image.height;
}
}
}
}
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原文地址:http://www.cnblogs.com/kuair/p/4398990.html