Vim will copy the text when I delete it, but how can I disable it?

Question

I don't like automatic copy the deleted text when delete in Vim, how to disable it?

Answer 1

Not sure there is a way to disable it, but there is a black hole register called '_', which swallows everything, and gives nothing back.

You use it by prepending "_ to the command, so "_dd would send the current line to the blackhole.