What's a good way for figuring out all possible words of a given length

Question

I\'m trying to create an algorithm in C# which produces the following output strings:

AAAA
AAAB
AAAC
...and so on...
ZZZX
ZZZY
ZZZZ

What is the

Answer 1

Simpler Python!

def getWords(length=3):
    if length == 0: raise StopIteration
    for letter in 'ABCDEFGHIJKLMNOPQRSTUVWXYZ':
        if length == 1: yield letter
        else:
            for partialWord in getWords(length-1):
                yield letter+partialWord