Przekazywanie danych do funkcji

Czym są argumenty funkcji?

Używanie argumentów w funkcjach

# Defines a function that greets a user by name
def greet(name):
    greeting = "Hello, " + name + "!"  # Creates a greeting message
    print(greeting)  # Prints the greeting message

# Calls the function with the argument "Alice"
greet("Alice")  # Output: Hello, Alice!

Argumenty domyślne

# Defines a function with a default parameter
def greet(name="Python Learner"):
    greeting = "Hello, " + name + "!"  # Creates a greeting message
    print(greeting)  # Prints the greeting message

# Calls the function without an argument
greet()  # Output: Hello, Python Learner!

# Calls the function with an argument
greet("Bob")  # Output: Hello, Bob!

Argumenty nazwane

# Defines a function that describes a person
def describe_person(name, age):
    description = name + " is " + str(age) + " years old."  # Creates a description
    print(description)  # Prints the description

# Calls the function using keyword arguments
describe_person(age=25, name="Charlie")  # Output: Charlie is 25 years old.

Argumenty o zmiennej długości (*args)

# Defines a function that sums any number of numbers
def sum_numbers(*args):
    total = 0  # Initializes the total
    for number in args:
        total += number  # Adds each number to the total
    return total  # Returns the sum

# Calls the function with different numbers of arguments
print(sum_numbers(1, 2, 3))       # Output: 6
print(sum_numbers(4, 5))          # Output: 9
print(sum_numbers(10, 20, 30, 40))  # Output: 100

Argumenty nazwane o zmiennej długości (**kwargs)

# Defines a function that prints keyword arguments
def print_info(**kwargs):
    for key, value in kwargs.items():
        print(key + ": " + str(value))  # Prints each key-value pair

# Calls the function with various keyword arguments
print_info(name="Diana", age=28, city="New York")
# Output:
# name: Diana
# age: 28
# city: New York

Zwracane wartości

# Defines a function that returns the square of a number
def square(number):
    result = number ** 2  # Calculates the square
    return result  # Returns the square

# Calls the function and stores the returned value
squared_value = square(5)
print("Square:", squared_value)  # Output: Square: 25

# Function that multiplies two numbers and returns the result
def multiply(a, b):
    product = a * b  # Calculates the product
    return product  # Returns the product

# Calls the function and stores the returned value
result = multiply(4, 5)
print("Product:", result)

Świetna robota!