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Python Loops Tutorial
Python Loops Tutorial
Counting with Loops
In programming, you often have to use a counter variable to perform basic arithmetic operations within a loop. This approach allows us to iteratively process data, such as summing values or tracking totals.
For example, if you want to calculate the sum of all numbers in a specific range, you can initialize a counter variable and update it during each iteration.
Let's adapt this concept to our common topic, working with the travel_list. Suppose you want to calculate the total length of all city names in our list.
travel_list = ['Monako', 'Luxemburg', 'Liverpool', 'Barcelona', 'Munchen'] # Initialize counter total_length = 0 # Iteration through the list for city in travel_list: # Add the length of each city name total_length += len(city) print('Total length of all city names:', total_length)
Swipe to start coding
You are working on a travel application that needs to analyze country names for display purposes. Your task is to count the total number of countries that start with the letter 'S'.
- Iterate through the list of
countries. - Increment a counter each time you encounter a country that starts with the letter
'S'.
Ratkaisu
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Counting with Loops
In programming, you often have to use a counter variable to perform basic arithmetic operations within a loop. This approach allows us to iteratively process data, such as summing values or tracking totals.
For example, if you want to calculate the sum of all numbers in a specific range, you can initialize a counter variable and update it during each iteration.
Let's adapt this concept to our common topic, working with the travel_list. Suppose you want to calculate the total length of all city names in our list.
travel_list = ['Monako', 'Luxemburg', 'Liverpool', 'Barcelona', 'Munchen'] # Initialize counter total_length = 0 # Iteration through the list for city in travel_list: # Add the length of each city name total_length += len(city) print('Total length of all city names:', total_length)
Swipe to start coding
You are working on a travel application that needs to analyze country names for display purposes. Your task is to count the total number of countries that start with the letter 'S'.
- Iterate through the list of
countries. - Increment a counter each time you encounter a country that starts with the letter
'S'.
Ratkaisu
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista