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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'.
Soluzione
Cambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguentiGrazie per i tuoi commenti!
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'.
Soluzione
Cambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguentiGrazie per i tuoi commenti!
Cambia al desktop per esercitarti nel mondo realeContinua da dove ti trovi utilizzando una delle opzioni seguenti