python关于CSV文件的读取

python关于指定路径CSV文件的读取：

#-*- coding: utf8 -*-
import csv

csv_reader = csv.reader(file('/Users/wangzhao/Downloads/test.csv','U'))
for row in csv_reader:
    print(row)

用file 和open都可完成文件的读取

#-*- coding: utf8 -*-

import csv

csv_reader = csv.reader(open('/Users/wangzhao/Downloads/test.csv','U'))
for row in csv_reader:

    print(row)