Write a Python function named "is_even" that takes an integer as input and returns True if the number is even, and False otherwise.

Sure! Here's the Python function you requested:

def is_even(num):
    if num % 2 == 0:
        return True
    else:
        return False

This function takes an integer `num` as input and checks if it is even by using the modulo operator `%`. If `num` is divisible by 2 with no remainder, then it is even and the function returns `True`. Otherwise, it returns `False`.

相关问题

Write a function, is_prime, that takes a single integer argument and returns True when the argument is a prime number and False otherwise.

Sure, here's the code for the is_prime function in Python:

def is_prime(n):
    if n <= 1:
        return False
    for i in range(2, int(n**0.5)+1):
        if n % i == 0:
            return False
    return True

This function checks if the input integer is greater than 1 (since 1 is not a prime number), and then iterates through all integers from 2 to the square root of the input integer. If any of these integers divide the input integer evenly, then it's not a prime and the function returns False. Otherwise, the input integer is a prime and the function returns True.