Calculating Array Sum in Python

Calculating the sum of an array is a basic operation in programming. In Python, this can be achieved through various methods, from simple loops to built-in functions. Here, we’ll demonstrate different ways to compute the total sum of an array.

Using the Built-in sum Function

Python offers a built-in sum() function that makes calculating the sum of an array (or list) very convenient. Here’s an example:

def calculate_array_sum(arr):
    return sum(arr)

numbers = [1, 2, 3, 4, 5]
total_sum = calculate_array_sum(numbers)
print(f"数组的和是: {total_sum}")

Using a Loop

You can also manually compute the sum using a loop. Here’s an example:

def calculate_array_sum(arr):
    total = 0
    for num in arr:
        total += num
    return total

numbers = [1, 2, 3, 4, 5]
total_sum = calculate_array_sum(numbers)
print(f"数组的和是: {total_sum}")

Using the built-in sum function is the easiest way to compute an array's sum, but knowing how to use loops is also useful, especially for more complex calculations.