Difference between revisions of "CSC111 Exercises with If statements"
(Created page with '--~~~~ ---- <source lang="python"> # if_tests.py # D. Thiebaut # A collection of if/else statements. # Figure out what gets printed! def f1(): a = 3 b = 5 c = 10 …') |
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--[[User:Thiebaut|D. Thiebaut]] 13:55, 10 March 2010 (UTC) | --[[User:Thiebaut|D. Thiebaut]] 13:55, 10 March 2010 (UTC) | ||
---- | ---- | ||
− | + | __TOC__ | |
+ | <br /> | ||
+ | ==Source== | ||
<source lang="python"> | <source lang="python"> | ||
# if_tests.py | # if_tests.py | ||
Line 159: | Line 161: | ||
<br /> | <br /> | ||
<br /> | <br /> | ||
+ | ==Output== | ||
+ | <code><pre> | ||
+ | |||
+ | python if_tests.py | ||
+ | Which function do you want to run? 1 | ||
+ | -------------------------------------------------- | ||
+ | statement 1 | ||
+ | f1 done! | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 2 | ||
+ | -------------------------------------------------- | ||
+ | statement 3 | ||
+ | f2 done! | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 3 | ||
+ | -------------------------------------------------- | ||
+ | statement 1 | ||
+ | f3 done! | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 4 | ||
+ | -------------------------------------------------- | ||
+ | statement 3 | ||
+ | statement 4 | ||
+ | f2 done! | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 5 | ||
+ | -------------------------------------------------- | ||
+ | statement 3 | ||
+ | statement 4 | ||
+ | f2 done! | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 6 | ||
+ | -------------------------------------------------- | ||
+ | statement 3 | ||
+ | statement 4 | ||
+ | f2 done! | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 7 | ||
+ | -------------------------------------------------- | ||
+ | newL = [('a', 3)] | ||
+ | newL = [('a', 3), ('z', 5)] | ||
+ | newL = [('a', 3), ('z', 5)] | ||
+ | newL = [('a', 3), ('z', 5)] | ||
+ | newL = [('a', 3), ('z', 5)] | ||
+ | rejects = [('f', 10), ('d', 0), ('c', 100)] | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 8 | ||
+ | -------------------------------------------------- | ||
+ | newL = [] | ||
+ | newL = [('z', 5)] | ||
+ | newL = [('z', 5)] | ||
+ | newL = [('z', 5)] | ||
+ | newL = [('z', 5)] | ||
+ | rejects = [('a', 3), ('f', 10), ('d', 0), ('c', 100)] | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 9 | ||
+ | -------------------------------------------------- | ||
+ | newL = [] | ||
+ | newL = [] | ||
+ | newL = [] | ||
+ | newL = [] | ||
+ | newL = [('c', 100)] | ||
+ | rejects = [('a', 3), ('z', 5), ('f', 10), ('d', 0)] | ||
+ | -------------------------------------------------- | ||
+ | [111c@beowulf ~/temp]$ python if_tests.py | ||
+ | Which function do you want to run? 10 | ||
+ | -------------------------------------------------- | ||
+ | |||
+ | |||
+ | *** Invalid number! *** | ||
+ | |||
+ | |||
+ | -------------------------------------------------- | ||
+ | |||
+ | </pre></code> | ||
<br /> | <br /> | ||
<br /> | <br /> |
Revision as of 09:57, 10 March 2010
--D. Thiebaut 13:55, 10 March 2010 (UTC)
Source
# if_tests.py
# D. Thiebaut
# A collection of if/else statements.
# Figure out what gets printed!
def f1():
a = 3
b = 5
c = 10
if a < b:
print "statement 1"
else:
if a < c:
print "statement 2"
else:
if b < c:
print "statement 3"
print "f1 done!"
def f2():
a = 30
b = 5
c = 10
if a < b:
print "statement 1"
else:
if a < c:
print "statement 2"
else:
if b < c:
print "statement 3"
print "f2 done!"
def f3():
a = 30
b = 50
c = 10
if a < b:
print "statement 1"
else:
if a < c:
print "statement 2"
else:
if b < c:
print "statement 3"
print "f3 done!"
def f4():
a = 30
b = 5
c = 10
if a < b < c:
print "statement 1"
else:
if a < c < b:
print "statement 2"
else:
print "statement 3"
print "statement 4"
print "f2 done!"
def f5():
a = 30
b = 50
c = 10
if a < b < c:
print "statement 1"
else:
if a < c < b:
print "statement 2"
else:
print "statement 3"
print "statement 4"
print "f2 done!"
def f6():
a = 3
b = 5
c = 1
if a < b < c:
print "statement 1"
else:
if a < c < b:
print "statement 2"
else:
print "statement 3"
print "statement 4"
print "f2 done!"
def f7():
L = ( ("a", 3), ("z", 5 ), ("f", 10), ("d", 0), ("c", 100) )
newL = []
rejects = []
for name, val in L:
if 0 < val < 10:
newL.append( (name, val) )
else:
rejects.append( (name, val ) )
print "newL = ", newL
print "rejects = ", rejects
def f8():
L = ( ("a", 3), ("z", 5 ), ("f", 10), ("d", 0), ("c", 100) )
newL = []
rejects = []
for name, val in L:
if val <= 10 and name > "f":
newL.append( (name, val) )
else:
rejects.append( (name, val ) )
print "newL = ", newL
print "rejects = ", rejects
def f9():
L = ( ("a", 3), ("z", 5 ), ("f", 10), ("d", 0), ("c", 100) )
newL = []
rejects = []
for name, val in L:
if not ( val <= 10 or name > "f" ):
newL.append( (name, val) )
else:
rejects.append( (name, val ) )
print "newL = ", newL
print "rejects = ", rejects
def main():
functionId = input( "Which function do you want to run? " )
print "-"*50
if functionId == 1:
f1()
elif functionId == 2:
f2()
elif functionId == 3:
f3()
elif functionId == 4:
f4()
elif functionId == 5:
f5()
elif functionId == 6:
f6()
elif functionId == 7:
f7()
elif functionId == 8:
f8()
elif functionId == 9:
f9()
else:
print "\n\n*** Invalid number! ***\n\n"
print "-"*50
main()
Output
python if_tests.py
Which function do you want to run? 1
--------------------------------------------------
statement 1
f1 done!
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 2
--------------------------------------------------
statement 3
f2 done!
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 3
--------------------------------------------------
statement 1
f3 done!
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 4
--------------------------------------------------
statement 3
statement 4
f2 done!
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 5
--------------------------------------------------
statement 3
statement 4
f2 done!
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 6
--------------------------------------------------
statement 3
statement 4
f2 done!
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 7
--------------------------------------------------
newL = [('a', 3)]
newL = [('a', 3), ('z', 5)]
newL = [('a', 3), ('z', 5)]
newL = [('a', 3), ('z', 5)]
newL = [('a', 3), ('z', 5)]
rejects = [('f', 10), ('d', 0), ('c', 100)]
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 8
--------------------------------------------------
newL = []
newL = [('z', 5)]
newL = [('z', 5)]
newL = [('z', 5)]
newL = [('z', 5)]
rejects = [('a', 3), ('f', 10), ('d', 0), ('c', 100)]
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 9
--------------------------------------------------
newL = []
newL = []
newL = []
newL = []
newL = [('c', 100)]
rejects = [('a', 3), ('z', 5), ('f', 10), ('d', 0)]
--------------------------------------------------
[111c@beowulf ~/temp]$ python if_tests.py
Which function do you want to run? 10
--------------------------------------------------
*** Invalid number! ***
--------------------------------------------------