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Python Loops Tutorial

If/Else in a for Loop

In the future, you'll frequently encounter and use the if/else construct within loops. Here's a quick reminder of how it works:

if - In this part, you specify the condition to check;
else - The actions to execute if the condition in the if statement evaluates to False.

Look at the code below:


              12345678
            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing special message, if 8 is in the list
for i in numbers:
  if i == 8:
     print('Here is 8!')
  else:
    print('This num is not 8')

How does the code work?

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

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Seção 1. Capítulo 5

If/Else in a for Loop

In the future, you'll frequently encounter and use the if/else construct within loops. Here's a quick reminder of how it works:

if - In this part, you specify the condition to check;
else - The actions to execute if the condition in the if statement evaluates to False.

Look at the code below:


              12345678
            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing special message, if 8 is in the list
for i in numbers:
  if i == 8:
     print('Here is 8!')
  else:
    print('This num is not 8')

How does the code work?

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

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Tudo estava claro?

Seção 1. Capítulo 5

If/Else in a for Loop

In the future, you'll frequently encounter and use the if/else construct within loops. Here's a quick reminder of how it works:

if - In this part, you specify the condition to check;
else - The actions to execute if the condition in the if statement evaluates to False.

Look at the code below:


              12345678
            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing special message, if 8 is in the list
for i in numbers:
  if i == 8:
     print('Here is 8!')
  else:
    print('This num is not 8')

How does the code work?

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

In the future, you'll frequently encounter and use the if/else construct within loops. Here's a quick reminder of how it works:

if - In this part, you specify the condition to check;
else - The actions to execute if the condition in the if statement evaluates to False.

Look at the code below:


              12345678
            
numbers = [2, 3, 4, 5, 6, 7, 8, 11]

# Printing special message, if 8 is in the list
for i in numbers:
  if i == 8:
     print('Here is 8!')
  else:
    print('This num is not 8')

How does the code work?

Tarefa

To create a program that determines whether a number in the list is less than 10, follow these steps:

Configure the for loop to operate on the numbers, using i as an element of the list.
Set the condition i < 10 to check if the number is less than 10.
Display the appropriate messages: 'is lower than 10' if an element is lower than 10 (inside the if block), and 'is greater or equal to 10' if an element is greater than or equal to 10 (inside the else block).

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Seção 1. Capítulo 5

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo