如何多次列出数组中多个值的总和，并找到最常见的输出？

def find_most_common_sum(arr):
    max_count = 0
    sum_count = {}
    most_common_sums = []

    for i in range(len(arr)):
        for j in range(i+1, len(arr)):
            total_sum = arr[i] + arr[j]
            if total_sum in sum_count:
                sum_count[total_sum] += 1
            else:
                sum_count[total_sum] = 1

            if sum_count[total_sum] > max_count:
                max_count = sum_count[total_sum]

    for key, value in sum_count.items():
        if value == max_count:
            most_common_sums.append(key)

    return most_common_sums

# 示例用法
array = [1, 2, 3, 4, 5]
result = find_most_common_sum(array)
print("最常见的输出：", result)