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Forwarded from Programming Quiz Channel
Forwarded from Programming Quiz Channel
True, one block of code runs. If False, another block (or nothing) might run.temperature = 25
if temperature > 20:
print("It's warm!")
It's warm!if StatementTrue.if condition:
# code to run if condition is True
age = 18
if age >= 18:
print("You are an adult.")
You are an adult.else Statementif condition is False.if condition:
# code if True
else:
# code if False
score = 75
if score >= 90:
print("Excellent!")
else:
print("Good effort!")
Good effort!elif (Else If) Statementif is False, it checks elif, and so on.if condition1:
# code if condition1 is True
elif condition2:
# code if condition2 is True
else:
# code if all conditions are False
time = 14
if time < 12:
print("Good morning!")
elif time < 18:
print("Good afternoon!")
else:
print("Good evening!")
Good afternoon!if-else statements on a single line.a = 10
b = 5
print("A is greater") if a > b else print("B is greater")
A is greaterif, elif, and elserange) or other iterable objects. They let you execute a block of code repeatedly for each item.for character in "Python":
print(character)
Pythonfor item in list_name:
# code to execute for each item
fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
print(f"I like {fruit}.")
I like apple.I like banana.I like cherry.range() Functionrange() function generates a sequence of numbers, often used to loop a specific number of times.range(stop): Numbers from 0 up to (but not including) stop.range(start, stop): Numbers from start up to (not including) stop.range(start, stop, step): Numbers from start up to stop, increasing by step.for i in range(3): # Loop 3 times (0, 1, 2)
print(f"Iteration {i}")
Iteration 0Iteration 1Iteration 2break and continue Statementsbreak: Stops the loop completely, even if the iterable hasn't finished.continue: Skips the rest of the current iteration and moves to the next.break):for number in range(1, 6):
if number == 4:
break # Stop when number is 4
print(number)
123continue):for item in ["A", "B", "C", "D"]:
if item == "C":
continue # Skip 'C'
print(item)
ABDbreak and continue to control loop flow (using your Python editor)[].my_list = ["apple", 3.14, True, 100]
print(my_list)
['apple', 3.14, True, 100]0 for the first item.fruits = ["apple", "banana", "cherry"]
print(fruits[0]) # First item
print(fruits[2]) # Third item
print(fruits[-1]) # Last item
applecherrycherrycolors = ["red", "green", "blue"]
colors[1] = "yellow" # Change 'green' to 'yellow'
print(colors)
['red', 'yellow', 'blue'].append(): Adds an item to the end of the list..insert(index, item): Adds an item at a specific index.names = ["Alice", "Bob"]
names.append("Charlie") # Add to end
names.insert(0, "David") # Add at the beginning
print(names)
['David', 'Alice', 'Bob', 'Charlie'].remove(item): Removes the first occurrence of a specified item..pop(index): Removes (and returns) the item at a specified index (or the last item if no index is given).del list[index]: Deletes the item at a specific index.numbers = [10, 20, 30, 20, 40]
numbers.remove(20) # Removes first '20'
del numbers[0] # Removes '10'
print(numbers)
[30, 20, 40]
def greet():
print("Hello from a function!")
def keyword to define a function, then call it by its name.def function_name(parameters):
# code to execute
function_name(arguments) # call the function
def say_hello():
print("Hello, Python learner!")
say_hello() # calling the function
Hello, Python learner!def welcome_user(name): # 'name' is a parameter
print(f"Welcome, {name}!")
welcome_user("Alice") # "Alice" is an argument
welcome_user("Bob")
Welcome, Alice!Welcome, Bob!return keyword.def add_numbers(a, b):
return a + b
result = add_numbers(5, 7)
print(result)
12Forwarded from Programming Quiz Channel
Forwarded from Programming Quiz Channel
x = 0
for i in range(3):
x += i
print(x)
3
