reader.next用法(python中)

python中有个csv包（build-in），该包有个reader，按行读取csv文件中的数据

reader.next()作用：打印csv文件中的第一行标题header

(python3中的用法)

allElectronicsData = open(r'C:/pydata/AllElectronics.csv', 'rt')

reader = csv.reader(allElectronicsData)

headers = next(reader)

(python2中的用法)

allElectronicsData = open(r'C:/pydata/AllElectronics.csv', 'rb')

reader = csv.reader(allElectronicsData)

headers = reader.next()