从csv中删除冗余时间戳

import csv

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

    # 删除冗余时间戳
    cleaned_data = [data[0]]  # 保留表头
    prev_timestamp = None
    for row in data[1:]:
        timestamp = row[0]  # 假设时间戳在第一列
        if timestamp != prev_timestamp:
            cleaned_data.append(row)
            prev_timestamp = timestamp

    # 保存结果
    with open(csv_file, 'w', newline='') as file:
        writer = csv.writer(file)
        writer.writerows(cleaned_data)

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