Python读写csv文件

1. 写入并生成csv文件

代码：

# coding: utf-8

import csv

csvfile = file('csv_test.csv', 'wb')

writer = csv.writer(csvfile)

writer.writerow(['姓名', '年龄', '电话'])

data = [

('小河', '25', '1234567'),

('小芳', '18', '789456')

]

writer.writerows(data)

csvfile.close()

• wb中的w表示写入模式，b是文件模式
• 写入一行用writerow
• 多行用writerows

2. 读取csv文件

代码：

# coding: utf-8

import csv

csvfile = file('csv_test.csv', 'rb')

reader = csv.reader(csvfile)

for line in reader:

print line

csvfile.close()

运行结果：

root@he-desktop:~/python/example# python read_csv.py

['\xe5\xa7\x93\xe5\x90\x8d', '\xe5\xb9\xb4\xe9\xbe\x84', '\xe7\x94\xb5\xe8\xaf\x9d']

['\xe5\xb0\x8f\xe6\xb2\xb3', '25', '1234567']

['\xe5\xb0\x8f\xe8\x8a\xb3', '18', '789456']