本文实例讲述了Python实现求两个csv文件交集的方法。分享给大家供大家参考，具体如下：
#!/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()