Run the trigger node developed by yourself to appear:Data returned by this node will display here

[CometNet]

I want to let him return the data to the next node when I click on the execute node, how do I do it?

[jan]

Did you check out the documentation we wrote specifically about Trigger-Node creation?
https://docs.n8n.io/nodes/creating-nodes/create-trigger-node.html

That covers the full process and also shows at the end how data can be returned:

Hope that is helpful!