1、导包
import csv
2、创建或打开文件,设置文件形式
csvfile = open('文件名.csv',mode='w',newline='')
3、设置列名
headers = ['列名1','列名2','列名3',...]
4、创建DictWriter对象
write = csv.DictWriter(csvfile,fieldnames=headers)
5、写入表头
write.writeheader()
6、数据写入
使用writerow方法写入行数据
write.writerow(row)
# 导包 import csv # 创建或打开文件 csvfile = open('成绩.csv', mode='w', newline='',encoding="utf-8") # 标题列表 headers = ['语文', '高数', '英语', '爬虫', 'python'] # 创建 DictWriter 对象 write = csv.DictWriter(csvfile, fieldnames=headers) # 写入表头 write.writeheader() # 写入数据 write.writerow({'语文': 80, '高数': 90, '英语': 20, '爬虫': 98, 'python': 89}) write.writerow({'语文': 84, '高数': 80, '英语': 60, '爬虫': 79, 'python': 91})
【Example】
# coding:utf-8 import csv rows=[ { "姓名":"张强", "语文":89, "数据":96, "英语":77 }, { "姓名":"白日依山尽", "语文":98, "数据":66, "英语":100 }, { "姓名":"倪我农", "语文":89, "数据":90, "英语":87 }, ] def write_to_csv(data,file): headers =list(data[0].keys()) csvfile = open(file, mode='w', newline='',encoding="utf-8") write = csv.DictWriter(csvfile, fieldnames=headers) write.writeheader() for row in data: write.writerow(row) print("写入[{}] 完成".format(file)) if __name__ == "__main__": write_to_csv(rows,"学生成绩表.csv")