javascript - thinkPHP u command jump problem

I now want to click download and jump to the downfile($fileurl) method of the Index controller, but it always jumps to the homepage?

After clicking the link, the address becomes as follows
localhost/appweb/index.php/home/Index/%7B:U('Index/downfile',array('fileurl'=>'/appweb/Publiccss/style. css'))

Reply content:

I now want to click download and jump to the downfile($fileurl) method of the Index controller, but it always jumps to the homepage?

After clicking the link, the address becomes as follows
localhost/appweb/index.php/home/Index/%7B:U('Index/downfile',array('fileurl'=>'/appweb/Publiccss/style. css'))

This is U method not parsed. I took a closer look at your code. Is there a }braces missing at the end?

You are missing half of the braces, {:U('')}, this is correct