JS实现点击下载的小例子_javascript技巧

复制代码 代码如下:

 点击下载 
          <script> <BR> function savepic()<BR> { <BR> if(document.all.a1==null)<BR> { <BR> objIframe=document.createElement("IFRAME"); <BR> document.body.insertBefore(objIframe); <BR> objIframe.outerHTML= "<iframe name=a1 style='width:0;hieght:0' src="+pic1.href+">"; <BR> re=setTimeout("savepic()",1) <BR> } <BR> else<BR> { <BR> clearTimeout(re) <BR> pic = window.open(pic1.href,"a1") <BR> pic.document.execCommand("SaveAs") <BR> document.all.a1.removeNode(true) <BR> }<BR> } <BR> </script>