1. 程式人生 > >上傳圖片實時預覽縮圖

上傳圖片實時預覽縮圖

{
   
var image=new Image();
   image.src
=develop//develop/ImgD.src;
if(image.width>0&& image.height>0){
    flag
=true;
    
if(image.width/image.height>=120/80){
     
if(image.width>120){  
     ImgD.width
=120;
     ImgD.height
=(image.height*120)/image.width;
     }
else{
     ImgD.width
=image.width;  
     ImgD.height
=image.height;
     }

     ImgD.alt
=image.width+"×"+image.height;
     }

    
else{
     
if(image.height>80){  
     ImgD.height
=80;
     ImgD.width
=(image.width*80)/image.height;     
     }
else{
     ImgD.width
=image.width;  
     ImgD.height
=image.height;
     }

     ImgD.alt
=image.width+"×"+image.height;
     }

    }

   
/**//*else{
    ImgD.src="";
    ImgD.alt=""
    }
*/

   }