pandas批量导入csv文件

导入单个csv文件

绝对路径

import pandas as pd
import numpy as np
import os

data = pd.read_csv('C:/Users/Administrator/Desktop/test/1.csv',sep = ',',encoding = 'gb18030')
data.head()

相对路径

import pandas as pd
import numpy as np
import os

os.chdir('C:/Users/Administrator/Desktop/test/')
os.getcwd()
data = pd.read_csv('1.csv',sep = ',',encoding = 'gb18030')
data.head()

批量导入csv文件

import pandas as pd
import numpy as np
import os

os.chdir('C:/Users/Administrator/Desktop/test/')
file_chdir = os.getcwd()

filecsv_list = []
for root,dirs,files in os.walk(file_chdir):
    for file in files:
        if os.path.splitext(file)[1] == '.csv':
            filecsv_list.append(file)

data = pd.DataFrame()
for csv in filecsv_list:
    data = data.append(pd.read_csv(csv,header = 0,sep=None,encoding='gb18030'))

data.to_csv('ALL.csv',index=0)