比较2个CSV文件的代码看不到相似之处

import csv

def compare_csv(file1, file2):
    # 读取第一个CSV文件
    with open(file1, 'r') as f1:
        csv1 = csv.reader(f1)
        data1 = list(csv1)

    # 读取第二个CSV文件
    with open(file2, 'r') as f2:
        csv2 = csv.reader(f2)
        data2 = list(csv2)

    # 比较两个CSV文件的内容
    similarities = []
    for row1 in data1:
        for row2 in data2:
            if row1 == row2:
                similarities.append(row1)

    return similarities

# 比较两个CSV文件的相似之处
file1 = 'file1.csv'
file2 = 'file2.csv'
similarities = compare_csv(file1, file2)

# 输出相似之处
if similarities:
    print("两个CSV文件的相似之处：")
    for row in similarities:
        print(row)
else:
    print("两个CSV文件没有相似之处。")