python数组查找元素

Given an integer array and we have to find the sum of all elements in Python.

给定一个整数数组，我们必须找到Python中所有元素的总和 。

查找数组元素的总和 (Finding the sum of array elements)

There are two ways to find the sum of all array elements, 1) traverse/access each element and add the elements in a variable sum, and finally, print the sum. And, 2) find the sum of array elements using sum() function.

有两种查找所有数组元素之和的方法： 1)遍历/访问每个元素并将元素添加到变量sum中 ，最后打印出sum 。 并且2)使用sum()函数找到数组元素的总和 。

Example:

例：

    Input: 
    arr = [10, 20, 30, 40, 50]
    Output:
    sum = 150

用于数组元素求和的Python程序 (Python program for sum of the array elements)

# Python program for sum of the array elements

# functions to find sum of elements

# Approach 1
def sum_1(arr):
    result = 0
    for x in arr:
        result += x
    return result

# Approach 2
def sum_2(arr):
    result = sum(arr)
    return result

# main function
if __name__ == "__main__":
    arr = [10, 20, 30, 40, 50]
    print ('sum_1: {}'.format(sum_1(arr)))
    print ('sum_2: {}'.format(sum_2(arr)))

Output

输出量

sum_1: 150
sum_2: 150

翻译自: https://www.includehelp.com/python/find-the-sum-of-all-elements-of-an-array.aspx

python数组查找元素