Python DictReader和DictWriter读写csv文件

写入操作：

import csv

with open("name.csv",'w',newline='')as c:
    file_name = ['first_name','last_name']
    writer = csv.DictWriter(c,fieldnames=file_name)
    # 写入列标题，即DictWriter构造方法的fieldnames参数
    writer.writeheader()
    # 写入值
    writer.writerow({"first_name":"55","last_name":"666"})
    writer.writerow({"first_name": "77", "last_name": "88"})

    

读取操作：

import csv

with open("name.csv")as f:
    reader = csv.DictReader(f)
    for row in reader:
        print(row['first_name'],row['last_name'])