Coding in Python: a comprehensive Beginners Guide to Learn the Realms of Coding in Python
Chapter Four: Python Conditionals
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Coding in Python A Comprehensive Beginners Guide to Learn the Realms
Chapter Four: Python Conditionals
A key part of programming is about examining a set of conditions and then taking appropriate action based on the conditions. The if statement in Python lets you test the state of a program and act on it appropriately. This chapter will walk you through the process of writing conditionals and checking them as well. The chapter will encompass simple and complex if statements. I will explain how you can pair up an if statement with lists. homeitems = ['dining table', 'cooking range', 'washing machine', 'refrigerator', 'air conditioner'] for homeitem in homeitems: if homeitem == 'dining table': print(homeitem.upper()) else: print(homeitem.title()) = RESTART: C:/Users/saifia computers/Desktop/sample.py DINING TABLE Cooking Range Washing Machine Refrigerator Air Conditioner >>> The simplest conditional test tends to check if a particular variable's value stands equal to your value of interest. Sometimes you need to check if a value exists in a list or not. The player in the game might want to check if a certain item has been purchased or not before he lists the office for sale. officeitems = ['printer', 'scanner', 'fan', 'table', 'table lights'] 'scanner' in officeitems You can use the conditional statements to check if a certain item appears in a list. You also can use the item to display a message or comment. officeitems = ['printer', 'scanner', 'fan', 'table', 'table lights'] item = 'scanner' item1 = 'table' item2 = 'extension cable' if item in officeitems: print(item.title() + " exists in the office.") if item1 in officeitems: print(item1.title() + " exists in the office.") if item2 not in officeitems: print(item2.title() + " is not exist in the office. You should buy it as soon as possible.") = RESTART: C:/Users/saifia computers/Desktop/sample.py Scanner exists in the office. Table exists in the office. Extension Cable does not exist in the office. You should buy it as soon as possible. >>> Let us see what more you can do with the conditional statements. You can add the conditional statement to tell the player when the office will be ready for listing in the game. officeitems = 10 if officeitems >= 10: print("You can list the office for sale") = RESTART: C:/Users/saifia computers/Desktop/sample.py You can list the office for sale >>> See the following example with an additional print statement. officeitems = 12 if officeitems >= 10: print("You can list the office for sale") print("Have you listed it yet.") = RESTART: C:/Users/saifia computers/Desktop/sample.py You can list the office for sale Have you listed it yet? >>> Download 1,25 Mb. Do'stlaringiz bilan baham: |
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