如何在Python中合并来自多个文件夹的多个CSV文件？

import os
import glob
import pandas as pd

def merge_csv_files(folder_path, output_file):
    all_files = glob.glob(os.path.join(folder_path, '*.csv'))
    df_list = []
    for file in all_files:
        df = pd.read_csv(file)
        df_list.append(df)
    merged_df = pd.concat(df_list)
    merged_df.to_csv(output_file, index=False)

folder_path = '文件夹路径'
output_file = '输出文件路径'
merge_csv_files(folder_path, output_file)