Python求两个csv文件交集方法教程

#!/usr/bin/env python

rd3 = open('data_17_17_2.csv')

base = open('data_17_17_3.csv')

wr3 = open('delNoBuyed3DayAndStoreAndInCar4.5.2.csv','w+')

bsData = base.readlines()

i = 1

for key in rd3:

 if key in bsData:

  wr3.write(key)

 if i == 1:

  print key

 i = (i + 1)%100

rd3.close()

base.close()

wr3.close()