In your browser, when you want to save an HTML page that you are currently viewing, you normally go to the File menu and click Save As.
Can I have a little button at the bottom of an HTML page that does the same thing? So instead of going to the File menu -> Save As, I want my user to be able to click the button to save the page on to the disk.
There is a solution exists using Javascript as far as I know, but it only works for IE. See here: link text
You could have the link run a server side script that loads the HTML file and writes it back to the client with a Content-Disposition: attachment; filename=xxx.html
header.
The document.execCommand('SavaAs')
works only in IE but the following link suggests other possibilities you may want to try out.
Take a look at downloadify jQuery plugin, which using flash to save. Javascript alone is impossible.
You have to create a button that downloads the HTML file, or the page you're on:
<form><input type="button" value="Download Now" onClick="window.location.href='yourpage.html'"></form>
来源:https://stackoverflow.com/questions/2849500/html-how-to-create-a-save-as-button