Convert/change the case of all letters/word into uppercase (capital) or lowercase in a list of strings

Convert/Change the Case of All Letters/Words into
Uppercase (Capital) or Lowercase in a List of Strings
- Python for Integrated Circuits -
- An Online Book -

Python for Integrated Circuits http://www.globalsino.com/ICs/

Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix

=================================================================================

Convert all letter to upper or lower cases. Code:
          Upload Files to Webpages
       Output:

============================================

Convert all letter to upper or lower cases. Code:
          Upload Files to Webpages
       Output:

============================================

Convert all letter to upper or lower cases. Code:
          Upload Files to Webpages
       Output:

============================================

=================================================================================