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Introduction to javascript·Picture object (no refresh transformation picture) scrolling image_image special effects

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Release: 2016-05-16 19:08:33
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<%@LANGUAGE="JAVASCRIPT" CODEPAGE="936"%>




Image Object





演示一:无刷新变换图片(有点歪)



  
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演示二:鼠标触发图片变换(书面名称好像叫图像滚动)




    //先建立两个数组,一组是on 状态的,一组是off状态的
    //数组使用的是字符串作索引,一来方便识别,二来在代码运行中不会冲突
    offimg=new Array()
    offimg["play"]=new Image(60,50)
    offimg["stop"]=new Image(60,50)
    offimg["pause"]=new Image(60,50)
    offimg["rewind"]=new Image(66,55)
    //赋值
    offimg["play"].src="img/1.jpg"
    offimg["stop"].src="img/2.jpg"
    offimg["pause"].src="img/3.jpg"
    offimg["rewind"].src="img/4.jpg"
    //第二个数组
    onimg=new Array()
    onimg["play"]=new Image(60,50)
    onimg["stop"]=new Image(60,50)
    onimg["pause"]=new Image(60,50)
    onimg["rewind"]=new Image(66,55)
    //赋值
    onimg["play"].src="img/5.jpg"
    onimg["stop"].src="img/6.jpg"
    onimg["pause"].src="img/7.jpg"
    onimg["rewind"].src="img/1.jpg"
    function on(imgname){
        if(document.images){//判断浏览器是否能够处理图片对象
            document.images[imgname].src=onimg[imgname].src//将对应的图片对象的src值赋给图片
        }
    }
    function off(imgname){
        if(document.images){//判断浏览器是否能够处理图片对象
            document.images[imgname].src=offimg[imgname].src//将对应的图片对象的src值赋给图片
        }
    }
    function setmsg(msg){//改变状态栏提示
        window.status=msg;
        return true;
    }


  
    
      
        
      
    
      

上面是DW做的
是预载入图片


    
    

      

      

     
  




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