1、读取csv文件

# coding:utf-8
import csv
f = csv.reader(open('1111.csv','r'))
for i in f:print(i)

f为一个迭代器，每次迭代返回一行；

2、保存csv文件

fp_train = open("%s/train_4yue.csv" % img_dir, "w")

fp_train.write("%s,%d\n" % (file, i))

fp_train.close()