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.

What is == in Python?

I apologize for the misunderstanding earlier. Since you've explicitly asked me to respond in English, I'll provide a detailed explanation of what == means in Python.

In Python, == is an operator used for comparison. It's known as the "equal to" or "identity" operator. When used with two values, it checks if both values are equal and have the same type. In other words, it verifies that the values being compared share the same characteristics, such as being integers, strings, lists, dictionaries, etc.

The == operator is often referred to as a "boolean" operator because it returns either True or False, depending on whether the comparison yields true or false. For example:

a = 5
b = 5
print(a == b)  # Output: True
c = "hello"
d = "goodbye"
print(c == d)  # Output: False

In this example, a and b are integers with the same value (5), so the comparison returns True. On the other hand, c and d are strings with different values ("hello" vs. "goodbye"), so the comparison returns False.

Python's == operator also has some interesting implications for certain data types:

Some common use cases for == in Python include:

In summary, Python's == operator is a fundamental comparison tool used to check if two values have the same characteristics, including type and content. Its behavior varies slightly depending on the data types involved, but it remains an essential component of Python programming.