A for loop is a type of loop in Python that allows you to execute a block of code repeatedly for a specific number of times. Here’s the general syntax for a for loop:
for variable in sequence:
# code block to execute
Here’s an example of how you could use a for loop to iterate over a list of numbers and print each one:
numbers = [1, 2, 3, 4, 5]
for num in numbers:
print(num)
In this example, we define a list of numbers and then use a for loop to iterate over each number in the list. The num
variable takes on the value of each element in the list, one at a time, and the print
statement outputs each number to the console.
You can also use a for loop to iterate over a range of numbers using the range
function. Here’s an example:
for i in range(1, 6):
print(i)
In this example, we use the range
function to create a sequence of numbers from 1 to 5, and then we use a for loop to iterate over each number in the sequence and print it to the console.
You can also use a for loop to iterate over a string, which will iterate over each character in the string. Here’s an example:
message = "Hello, World!"
for char in message:
print(char)
In this example, we use a for loop to iterate over each character in the string message
and print it to the console.
These are just a few examples of how you can use a for loop in Python. For loops are a powerful tool for iterating over sequences of data, and they can be used in a wide variety of applications. I hope this helps! Let me know if you have any other questions.