用python合并多个csv文件

import pandas as pd
import os
from tqdm import tqdm  # 进度条模块

#将多个csv文件合并且保存于test.csv文件
def get_data(path):
    df_list = []
    for file in tqdm(os.listdir(path)):  ##进度条
        file_path = os.path.join(path, file)
        df = pd.read_csv(file_path)
        df_list.append(df)
    df = pd.concat(df_list)
    return df

cPath = 'D:\pythonProject\test'  #保存路径
test_df = get_data(cPath)
test_df.to_csv(path_or_buf="test.csv",index=False)#保存为CSV文件