38 lines
945 B
Plaintext
38 lines
945 B
Plaintext
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# FOR LOOPS
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# this for loop starts at 0, stops at 5-1
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for i in range(5):
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print(i)
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print() # print a blank line
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# iterate letters in a text string
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# first time through the loop the variable 'letter' is d, then o, then g
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# letter is just a variable name. we can change it to whatever we want
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for letter in "dog":
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print(letter)
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print()
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# loop starts with 5 and continues to 10-1
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for i in range(5, 10):
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print (i**2) # print i squared
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print()
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# parameters for the range function: (start, stop-1, step)
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# in this loop, start=10, end=20-1, step=3
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# (every third number from 10 to 19)
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for i in range(10, 20, 3):
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print(i)
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print()
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# for loop iterates a list
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# here the list is a list of text strings, bird names
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# birds is our variable name for the list
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# i is our variable name for each bird in the list inside the for loop.
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birds = ['robin', 'sparrow', 'duck']
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for i in birds:
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print(len(i)) # print number of letters in each item
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