将csv中硬写的unicode更改为相应的字符

import csv
import re

def convert_unicode(csv_file):
    updated_rows = []
    
    with open(csv_file, 'r', encoding='utf-8') as file:
        reader = csv.reader(file)
        for row in reader:
            updated_row = []
            for item in row:
                if re.search(r'\\u[0-9a-fA-F]{4}', item):
                    updated_item = item.encode().decode('unicode-escape')
                    updated_row.append(updated_item)
                else:
                    updated_row.append(item)
            updated_rows.append(updated_row)
    
    with open(csv_file, 'w', encoding='utf-8', newline='') as file:
        writer = csv.writer(file)
        writer.writerows(updated_rows)

# 使用示例
csv_file = 'data.csv'
convert_unicode(csv_file)