有没有一种方法可以使用客户端编程来实现这一点？
我需要浏览器下载图像文件，就像它在点击Excel表单时一样。只有？
< html xmlns =www.w3/1999/xhtml> < head> < title>< / title> < script type =text / javascriptsrc =Scripts / jquery-1.10.2.js> $（document）.ready（function（）{ $（*）。click（function（）{ $（p）。hide（）; }）; }）; < / script> < / head> < script type =text / javascript> document.onclick = function（e）{ e = e || window.event; var element = e.target || e.srcElement; if（element.innerHTML ==Image）{ //someFunction（element.href）; var name = element.nameProp; var address = element.href; saveImageAs1（element.nameProp，element.href）; 返回false; //防止默认动作并停止事件传播} else return true; }; $ b $ function saveImageAs1（name，adress）{ if（confirm（'you want to save this image？'））{ window.win = open（adress）; //response.redirect(\"~/testpage.html）; setTimeout（'win.document.execCommand（SaveAs）'，100）; setTimeout（'win.close（）'，500）; } } < / script> < body> < form id =form1runat =server> < div> < p> < a href =http：// localhost：55298 / SaveImage / demo / Sample2.xlsxtarget =_ blank> Excel< / a>< br /> < a href =http：// localhost：55298 / SaveImage / demo / abc.jpgid =abc>图片< / a> < / p> < / div> < / form> < / body> < / html>如何下载Excel表格（浏览器）？
解决方案使用HTML5，您可以将属性'download'添加到您的链接中。 < a href =/ path / to / image.png下载>
下载具有相同文件名的图像（在这个例子中为image.png）。
如果你为这个属性指定一个值，那么它将成为新的文件名：
< a href =/ path / to / image.pngdownload =AwesomeImage.png> 更新：截至2018年春天，对于跨源 href 取值即可。因此，如果您想在imgur以外的域名上创建< a href =i.imgur/IskAzqA.jpg下载> 将无法按预期工作。 Chrome的弃用和移除公告
p>I need the browser to download the image files just as it does while clicking on an Excel sheet.
Is there a way to do this using client-side programming only?
<html xmlns="www.w3/1999/xhtml"> <head> <title></title> <script type="text/javascript" src="Scripts/jquery-1.10.2.js"> $(document).ready(function () { $("*").click(function () { $("p").hide(); }); }); </script> </head> <script type="text/javascript"> document.onclick = function (e) { e = e || window.event; var element = e.target || e.srcElement; if (element.innerHTML == "Image") { //someFunction(element.href); var name = element.nameProp; var address = element.href; saveImageAs1(element.nameProp, element.href); return false; // Prevent default action and stop event propagation } else return true; }; function saveImageAs1(name, adress) { if (confirm('you wanna save this image?')) { window.win = open(adress); //response.redirect("~/testpage.html"); setTimeout('win.document.execCommand("SaveAs")', 100); setTimeout('win.close()', 500); } } </script> <body> <form id="form1" runat="server"> <div> <p> <a href="localhost:55298/SaveImage/demo/Sample2.xlsx" target="_blank">Excel</a><br /> <a href="localhost:55298/SaveImage/demo/abc.jpg" id="abc">Image</a> </p> </div> </form> </body> </html>How should it work in case of downloading an Excel sheet (what browsers do)?
解决方案Using HTML5 you can add the attribute 'download' to your links.
<a href="/path/to/image.png" download>
Compliant browsers will then prompt to download the image with the same file name (in this example image.png).
If you specify a value for this attribute, then that will become the new filename:
<a href="/path/to/image.png" download="AwesomeImage.png">
UPDATE: As of spring 2018 this is no longer possible for cross-origin hrefs. So if you want to create <a href="i.imgur/IskAzqA.jpg" download> on a domain other than imgur it will not work as intended. Chrome deprecations and removals announcement
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