Python Function

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🔷 Python Function – Notes (Very Easy Hinglish)

🔸 Function kya hota hai?

Function ek code ka group hota hai jisko baar-baar use kar sakte hain bina baar-baar likhe.

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🔸 Syntax of Function:

def function_name():
    # yeh kaam karega jab function call hoga

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🔸 Example:

def greet():
    print("Hello! Welcome to Python.")

greet()  # function ko call kiya

🟢 Output:

Hello! Welcome to Python.

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🔸 Function with Parameters:

def add(a, b):
    print("Sum is:", a + b)

add(3, 4)

🟢 Output:

Sum is: 7

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🔸 Function with Return Value:

def square(x):
    return x * x

result = square(5)
print("Square is:", result)

🟢 Output:

Square is: 25

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🟨 Practice Exercises with Solution

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✅ Exercise 1:

Q. Ek function banao jo "Good Morning" print kare.

def wish():
    print("Good Morning!")

wish()

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✅ Exercise 2:

Q. Ek function banao jo 2 numbers ka sum return kare.

def sum_two_numbers(a, b):
    return a + b

print("Total:", sum_two_numbers(10, 20))

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✅ Exercise 3:

Q. Ek function likho jo kisi number ka cube return kare.

def cube(n):
    return n * n * n

print("Cube is:", cube(3))

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✅ Exercise 4:

Q. Ek function likho jo diya gaya naam print kare:

def say_hello(name):
    print("Hello", name)

say_hello("Navghan")

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अगर आप चाहो तो मैं aur difficult questions ya test-style questions bhi de sakta hoon. Batao?