计算多个文件中数据的平均值

import os

def calculate_average(files):
    total_sum = 0
    total_count = 0

    for file_path in files:
        if os.path.isfile(file_path):
            with open(file_path, 'r') as file:
                lines = file.readlines()
                for line in lines:
                    data = float(line.strip())  # 假设文件每行为一个数据，将其转换为浮点数
                    total_sum += data
                    total_count += 1

    if total_count > 0:
        average = total_sum / total_count
        return average

    return None

# 使用示例
files = ['file1.txt', 'file2.txt', 'file3.txt']  # 文件列表，需根据实际情况修改
result = calculate_average(files)
if result is not None:
    print("总体平均值为:", result)
else:
    print("没有找到有效的数据文件。")