07_loopsExample.py

#!/usr/bin/env python3

"""
Examples for loops

https://docs.python.org/3/reference/compound_stmts.html#for
https://docs.python.org/3/reference/compound_stmts.html#while

Jens Dede, 2019, jd@comnets.uni-bremen.de
"""

# Print numbers from 1 to 10
print("For loop")
for number in range(1,11):
    print(number)

# Print numbers from 1 to 10 but break loop under certain conditions
print("Break loop")
for number in range(1,11):
    if number == 5:
        break # Stop the loop
    print(number)

# Print numbers from 1 to 10 but continue loop under certain conditions
print("Continue loop")
for number in range(1,11):
    if number % 2: # Modulo operator: %
        continue # Next iteration
    print(number)

# Iterate over items
print("Iterate loop")
items = ["Book", "Banana", "Computer"]
for item in items:
    print("I will take my", item, "with me...")

# While loop
print("While loop")
number = 1
while (number < 10):
    print(number)
    number += 1 # Short form for number = number + 1, number++ does not exist

# What to try out
#################
# - You can user several loops. Write a program which outputs a multiplication
# table from 1 to 100 (1x1=1, 1x2=2, etc.)