如何比较两个列相同但值不同的csv文件？

import csv

def compare_csv_files(file1, file2):
    with open(file1, 'r') as csvfile1, open(file2, 'r') as csvfile2:
        reader1 = csv.reader(csvfile1)
        reader2 = csv.reader(csvfile2)
        header1 = next(reader1)  # 读取第一行作为标题
        header2 = next(reader2)

        column_index = None
        for index, column_name in enumerate(header1):
            if column_name == '列名':  # 替换为实际的列名
                column_index = index
                break

        different_rows = []
        for row1, row2 in zip(reader1, reader2):
            if row1[column_index] != row2[column_index]:
                different_rows.append(row1)

        # 输出不同行到新的CSV文件
        with open('different_rows.csv', 'w', newline='') as outputfile:
            writer = csv.writer(outputfile)
            writer.writerow(header1)
            writer.writerows(different_rows)

compare_csv_files('file1.csv', 'file2.csv')