Learning any language will help you to learn others. With most languages you have the for loop, the do loop, the while loop, the foreach loop, if statements, case statements, declaring variables, etc. After you learn how these things work in one language, you have an idea of how they work in general.
Once you learn the basic structure of programming, learning a new language is a matter of learning new syntax.
Although, the more languages you know, the more likely that some of your efforts will look as if you had invented Visual Perl++...