How to split string without for loop in batch file

Question

I want to split a string in two parts, without using any for loop.

For example, I have the string in a variable:

str=45:abc

I want

Answer 1

Yes, I know this is a very old topic, but I just discovered it and I can't resist the temptation of post my solution:

@echo off
setlocal

set "str=45:abc"
set "var1=%str::=" & set "var2=%"
echo var1="%var1%"  var2="%var2%"

You may read full details of this method here.