我有一个以filename作为输入的方法，应该以output.The文件的形式返回一个数组，该文件包含学生记录以及科目的名称和标记

import csv

def process_file(filename):
    # 读取CSV文件
    with open(filename, 'r') as file:
        reader = csv.reader(file)
        data = list(reader)

    # 提取学生记录、科目名称和标记
    students = []
    subjects = []
    marks = []
    for row in data:
        students.append(row[0])
        subjects.append(row[1])
        marks.append(row[2])

    # 构建包含学生记录、科目名称和标记的数组
    result = []
    for i in range(len(students)):
        record = {
            'student': students[i],
            'subject': subjects[i],
            'mark': marks[i]
        }
        result.append(record)

    # 将结果写入output.The文件
    with open('output.The', 'w') as file:
        writer = csv.writer(file)
        writer.writerow(['student', 'subject', 'mark'])  # 写入表头
        for record in result:
            writer.writerow([record['student'], record['subject'], record['mark']])

    return result