Dreamweaver bulk remove spaces, blank lines

When making an online shop, find a blank line, or a space. If the quantity is relatively small, it can be cleared manually. If more, you can use Dreamweaver batch removal.
Here's how:
The first step is to delete all the blank lines with regular expressions (in fact this step is not necessarily done, I just want to standardize and save the Code)
Want to put
\n[\s|] *\r
Replace All to
\ n
The second step is to delete the first and last blank lines with regular expressions (this step must be done to delete the output that produced the error.) ）
^[\s|] *\n|\n[\s|] *$
Replace all with (empty here without adding any strings)

Dreamweaver bulk remove spaces, blank lines