python获取csv文本的某行或某列数据

#coding = 'utf-8'

import csv

# 使用list，只能读取列，而且是全文读取,csv.reader会自动把CSV内容生成数组
'''
df = csv.reader(open('F:c_databasec2015.csv'))
for data in df:
    print (data[3])
'''

#如果要读取某行，必须将CSV内容生成 DICT字典（2维）
with open('F:c_databasec2015.csv','r') as csvfile:
        reader = csv.DictReader(csvfile)
        for row in reader:
                if row['日期']  ==  '20150105':
                    print (row)