How does DEDECMS call the top column ID of the current column?

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The first door path:

DedeCMS calls the top column ID door path 1:

{dede:field.typeid function= "GetTopid (@ me)" /}

The second way

Step 1: misappropriate the top column id in the template

{dede:type} [field:topid /] {/ dede:type}

The second sequence:

Find the type.lib.php under the taglib directory under the include directory

$row = $dsql- > GetOne ("SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath

FROM `_ arctype` WHERE id='$typeid' ")

The code is modified to:

$row = $dsql- > GetOne ("SELECT id,topid,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath

FROM `_ arctype` WHERE id='$typeid' ")

The real code id, followed by the addition of a topid

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