How loops in a thinkphp template pass a variable

How does a loop pass a variable in a thinkphp template?
thinkphp Content Template page, the content page ID {$cont. id}, can be directly output in the content page, such as the page address is/page-51, {$cont. ID} can be directly output 51.

There is a loop list on the content page that needs to pass in the {$cont. ID}, but it is not available every time.

The wording of a

 
 
  
  
      Xxx
  
  

 
 

Two

 
 
  
  
      Xxx
  
  

 
 

{$wcon. ID} How can I get his value into the loop?
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Do you have wlist tags?
Only Volist.
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Do you want to define the processing code for the custom?
How you define it, how you preach it.
How do people know?

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