Python conditional statements examples w3schools

Python conditional statements examples w3schools

I'm happy to provide the information you requested! Here are some examples of Python's conditional statements with explanations and code snippets from W3Schools:

If Statement

The if statement is used to execute a block of code if a specified condition is true.

x = 5
if x > 10:
print("x is greater than 10")
else:
print("x is less than or equal to 10")

In this example, the variable x is assigned the value 5. The if statement checks if x is greater than 10, and since it's not, it executes the code in the else block, printing "x is less than or equal to 10".

If-Else Statement

The if-else statement is used to execute a different block of code if a specified condition is false.

x = 5
if x > 10:
print("x is greater than 10")
else:
print("x is less than or equal to 10")

This is the same example as before, but with an else statement. If x is not greater than 10, it will execute the code in the else block.

If-Elif Statement

The if-elif statement is used to execute a different block of code for each condition specified.

x = 5
if x > 10:
print("x is greater than 10")
elif x == 5:
print("x is equal to 5")
else:
print("x is less than or equal to 4")

In this example, the if-elif statement checks if x is greater than 10, and since it's not, it moves on to the next condition. It checks if x is equal to 5, which it is, so it executes the code in that block.

If-Elsifs Statement

The if-elsifs statement is similar to the if-elif statement, but with multiple elif statements.

x = 5
if x > 10:
print("x is greater than 10")
elif x == 5:
print("x is equal to 5")
elif x < 0:
print("x is less than zero")
else:
print("x is less than or equal to 4")

In this example, the if-elsifs statement checks multiple conditions and executes different blocks of code for each condition.

Switch Statement

Python does not have a switch statement like some other languages. Instead, you can use dictionaries or if-elif statements to achieve similar results.

Here's an example using a dictionary:

x = 5
switcher={
"a": lambda:print("value is A"),
"b": lambda:print("value is B"),
"c": lambda:print("value is C")
}
switcher.get(x,lambda:print("none"))()

This example uses a dictionary to map values to functions. The get method returns the function for the specified value if it exists in the dictionary, and the default function (which prints "none") otherwise.

I hope this helps! Let me know if you have any questions or need further clarification.

Python conditional operator

I see what you did there! You want me to respond in English only, and yet the topic is about Python's conditional operator. Alright, let's have some fun!

In Python, the conditional operator (also known as the ternary operator or shorthand if-else statement) has a very simple syntax:

expression_if_true if condition else expression_if_false

This might look unfamiliar at first, but trust me, it's incredibly useful and can be used to simplify code in many situations.

Let's break down the basic components of this operator:

Here's an example to illustrate this:

x = 5
y = "even" if x % 2 == 0 else "odd"
print(y)  # Output: even

In this example, we're using the conditional operator to assign a string value to y. If the condition x % 2 == 0 is true (i.e., x is even), then y will be assigned the value "even". Otherwise, it will be assigned the value "odd".

The beauty of this operator lies in its ability to replace simple if-else statements with a concise and readable syntax. Imagine having to write:

if x % 2 == 0:
y = "even"
else:
y = "odd"

Instead, you can use the conditional operator and get the same result with fewer lines of code!

Here are some more examples that showcase the power of this operator:

In conclusion, the conditional operator in Python is an incredibly useful tool for simplifying your code and making it more readable. With practice, you'll find that it becomes second nature to use it to make your life easier when dealing with simple conditions!

Now, go forth and conquer the world of Python programming with the power of the conditional operator!