Difference between revisions of "How to use while & for loops"
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== Sample programs== | == Sample programs== | ||
<li>for loop example | <li>for loop example | ||
| + | <li> This program prints out all lower case alphabets | ||
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|Code=#################################### | |Code=#################################### | ||
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<li>while loop example | <li>while loop example | ||
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{{CodeBlock | {{CodeBlock | ||
|Code=############################################ | |Code=############################################ | ||
| − | # | + | # This program ensures that the user enters either of the |
# characters (a, b or c) | # characters (a, b or c) | ||
Revision as of 07:17, 4 April 2012
COMP 1010 Home > Back to Extra Labs
IntroductionIn this program, you will be learn how to use while and for loop control structures in Python. while and for loops syntax in Python:while (expression): Statement(s) for iterating_var in sequence: Statement(s) The two sample programs shown below does the following shows |
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Sample programs
####################################
#Prints out all lower case alphabets
letter = 'a'
for i in range (0,26):
print letter
letter = chr(ord(letter) + 1)
############################################
# This program ensures that the user enters either of the
# characters (a, b or c)
## Gets input from th user
message = raw_input("Please enter a, b, or c: ")
while(message != "a" and message != "b" and message != "c"):
message = raw_input("Please enter a, b, or c:")
print "You entered: " + message 
