1、当csv文件不含表头(即纯数据,没有列名称)
import pandas as pd
from tqdm import tqdm # 进度条模块
from glob import glob
lst_file = glob("D:\\test\\*.csv")
for in_file in tqdm(lst_file): # 对迭代器添加进度条显示
df = pd.read_csv(in_file)
df_data = pd.DataFrame(df)
df_data.to_csv("D:\\test.csv",index = False,mode='a')
# 插入表头
df = pd.read_csv('D:\\test.csv',header=None,names=['name','grade','class','age','score'])
df.to_csv('D:\\test.csv',index=False)
2、当csv文件含表头(即有列名称)
import pandas as pd
from tqdm import tqdm # 进度条模块
from glob import glob
lst_file = glob("D:\\test\\*.csv")
data = pd.Dataframe()
for in_file in tqdm(lst_file): # 对迭代器添加进度条显示
df = pd.read_csv(in_file)
df_data = pd.DataFrame(df)
data = pd.concat([data,df_data])
data.to_csv("D:\\test.csv",index = False)