[20180603]Python读写csv

原文：https://docs.python.org/3/library/csv.html

进入python官网后，选择document，然后选择library reference。

读取：

import csv
with open('eggs.csv', newline='') as csvfile:
 spamreader = csv.reader(csvfile, delimiter=' ', quotechar='|')
 for row in spamreader:
 print(', '.join(row))

写入：

import csv
with open('eggs.csv', 'w', newline='') as csvfile:
    spamwriter = csv.writer(csvfile, delimiter=' ',
                            quotechar='|', quoting=csv.QUOTE_MINIMAL)
    spamwriter.writerow(['Spam'] * 5 + ['Baked Beans'])
    spamwriter.writerow(['Spam', 'Lovely Spam', 'Wonderful Spam'])