在Python中获取JSON键的平均值

import json

def get_average(json_data, key):
    total = 0
    count = 0

    # 遍历JSON数据中的每个对象
    for obj in json_data:
        # 检查对象是否包含给定的键
        if key in obj:
            # 将键的值添加到总和中
            total += obj[key]
            count += 1

    # 计算平均值
    if count > 0:
        average = total / count
        return average
    else:
        return None

with open('data.json') as file:
    json_data = json.load(file)

average_value = get_average(json_data, "value")

if average_value is not None:
    print("平均值为:", average_value)
else:
    print("找不到指定的键")