python读取文件夹下的所有csv文件

import os
import sys
import csv
file_path = sys.argv[1]
for file in os.listdir(file_path):
#可以添加过滤条件if file.endwith(".csv"）
print file
with open(os.path.join(file_path,file),‘r’) as f:
csv_reader = csv.reader(f)
for line in csv_reader:
print line
break