读写CSV文件

Posted 2021-06-08 王炸123

一、使用CSV模块读写文件，参数delimiter指定分隔类型，默认","分隔

二、参数newline保证写入的文件没有空行

三、实例：

import csv
with open("book_in.csv", encoding=\'utf8\') as rf:
    reader = csv.reader(rf, delimiter=\' \')
    headers = next(reader)
    with open("book_out.csv", \'w\', encoding=\'utf8\', newline=\'\') as wf:
        writer = csv.writer(wf, delimiter=\' \')
        writer.writerow(headers)
        for book in reader:
            print(book)
            price = book[-2]
            if price and float(price) >= 80.00:
                writer.writerow(book)