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JS open picture save as dialog box implementation code_javascript skills

WBOY
WBOYOriginal
2016-05-16 17:45:171229browse

An example of clicking a button to open the Save Picture As dialog box is as follows

Copy the code The code is as follows:




New Document </title> ; <BR><meta name="Generator" content="EditPlus"> <br><meta name="Author" content=""> <br><meta name="Keywords" content=" "> <br><meta name="Description" content=""> <br><script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery .min.js" type="text/javascript"></script> <br><script language="JavaScript"> <br><!-- <BR>function downLoadImage(imagePathURL){ <BR>//If the intermediate IFRAME does not exist, add <BR>if(!document.getElementById("_SAVEASIMAGE_TEMP_FRAME")) <BR>jQuery('<iframe style="display:none;" id="_SAVEASIMAGE_TEMP_FRAME" name ="_SAVEASIMAGE_TEMP_FRAME" onload="_doSaveAsImage();" <BR>width="0" height="0" src="about:blank"></iframe>').appendTo("body"); <br>if(document.all._SAVEASIMAGE_TEMP_FRAME.src!=imagePathURL){ <br>//The image address changes, load the image<br>document.all._SAVEASIMAGE_TEMP_FRAME.src = imagePathURL; <br>}else{ <br> //The image address has not changed, save it directly as <br>_doSaveAsImage(); <br>} <br>} <br>function _doSaveAsImage(){ <br>if(document.all._SAVEASIMAGE_TEMP_FRAME.src!="about: blank") <br>document.frames("_SAVEASIMAGE_TEMP_FRAME").document.execCommand("SaveAs"); <br>} <br>//--> <br></script> <br>< /head> <br><body> <br><input type="button" value="download image" onclick="downLoadImage('http://www.blogjava.net/images/blogjava_net/weiwei/46570 /r_beyond1991.jpg');"> <br></body> <br></html><br> </div></div><div class="nphpQianMsg"><div class="clear"></div></div><div class="nphpQianSheng"><span>Statement:</span><div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. 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