DEDE interlaced color change and grouping line modification method

Open: inc_channel_unit_functions.php
Add to the following paragraph

Copy the codeThe code is as follows:

//zouql 
//$f Total list
//$t Number of lists per group
function MyList($f,$t,$meid,$con) 
{ 
if($meid%$t ==0 && $meid < $f) 
return $con; 
}

Example of use:

Copy the codeThe code is as follows:

<ul> 
{dede:arclist row=20 titlelen=80 orderby=pubdate} 
<li [field:global name=autoindex function='MyList("20","2",@me,"class=\"color\"")'/]>[field:textlink/]</li> 
[field:global name=autoindex function='MyList("20","5",@me,"<li class=\"line\"></li>")'/] 
{/dede:arclist} 
</ul>

The above example contains 2 usages:

Copy the codeThe code is as follows:

[field:global name=autoindex function='MyList("20","2",@me,"class=\"color\"")'/] 

and

Copy the codeThe code is as follows:

[field:global name=autoindex function='MyList("20","5",@me,"<li class=\"line\"></li>")'/] 

The first one, if you define the relevant css, it is color change between lines and lines
The second one, if you define the relevant css, add a horizontal line across 5 lines, add 3 lines in 20 lists, and do not add 4 lines in the last one.
If you want to add && $meid < $f at the end, just add && $meid < $f.