如何去除CSV文件开头无用警告信息？

import csv

def clean_csv(input_file, output_file, delimiter=',', header_indicator='表头'):
    """
    清除CSV文件开头警告信息。

    Args:
        input_file: 输入CSV文件路径。
        output_file: 输出CSV文件路径。
        delimiter: CSV分隔符，默认为逗号。
        header_indicator: 表头标识符，默认为'表头'。  可根据实际情况修改。
    """
    with open(input_file, 'r', encoding='utf-8') as f: # 添加编码设置，避免编码错误
        lines = f.readlines()

    split_index = None
    for i, line in enumerate(lines):
        if header_indicator in line or line.strip() == "":
            split_index = i
            break

    if split_index is not None:
        cleaned_data = lines[split_index+1:]
    else:
        cleaned_data = lines

    with open(output_file, 'w', newline='', encoding='utf-8') as f: # 添加newline=''和编码设置
        writer = csv.writer(f, delimiter=delimiter)
        writer.writerows([line.strip().split(delimiter) for line in cleaned_data])


# 使用示例
clean_csv('csv_file.csv', 'cleaned_csv_file.csv')