How to display pages in one iframe in another iframe?

anson0000

There are two iframes in the page, and one of them already has a page. How can I use a client-side script to display the pages in this iframe in another iframe?
Note: This page cannot be reloaded, so it cannot be achieved by changing the src or location of the iframe.

疯狂的兔子

If you want to display the contents of frame1 directly on frame2
Can use
frame2.document.getElementsByTagName ('html') [0] .innerHTML = frame1.document.getElementsByTagName ('html') [0] .innerHTML;