在python中读取和写入CSV文件详情

import csv

import csv
header = ['name','age','QQ_num','wechat']
data = [['suliang','21','787991021','lxzy787991021']]
with open ('information.csv','w',encoding='utf-8',newline='') as fp:
    # 写
    writer =csv.writer(fp)
    # 设置第一行标题头
    writer.writerow(header)
    # 将数据写入
    writer.writerows(data)

import csv

with open('information.csv',encoding='utf-8')as fp:
    reader = csv.reader(fp)
    # 获取标题
    header = next(reader)
    print(header)
    # 遍历数据
    for i in reader:
        print(i)

import csv
header = ['name','age']
data = [{'name':'suliang','age':'21'},
        {'name':'xiaoming','age':'22'},
        {'name':'xiaohu','age':'25'}]
with open ('information.csv','w',encoding='utf-8',newline='') as fp:
    # 写
    writer =csv.DictWriter(fp,header)
    # 写入标题
    writer.writeheader()
    # 将数据写入
    writer.writerows(data)

import csv
with open('information.csv',encoding='utf-8')as fp:
    reader = csv.DictReader(fp)
    for i in reader
        print(i)