如何比较csv文件中的两行？

import csv

def compare_csv_rows(file_path, row1_index, row2_index):
    with open(file_path, 'r') as file:
        csv_reader = csv.reader(file)
        rows = list(csv_reader)
        
        if row1_index >= len(rows) or row2_index >= len(rows):
            return "Invalid row index"
        
        row1 = rows[row1_index]
        row2 = rows[row2_index]
        
        if len(row1) != len(row2):
            return "Rows have different number of columns"
        
        differences = []
        for i in range(len(row1)):
            if row1[i] != row2[i]:
                differences.append(i)
        
        if len(differences) == 0:
            return "Rows are identical"
        else:
            return "Rows are different. Different columns: " + ', '.join(str(x) for x in differences)

# 示例用法
file_path = 'data.csv'
row1_index = 1
row2_index = 2
result = compare_csv_rows(file_path, row1_index, row2_index)
print(result)