my_csv.py

import csv

data=[["姓名", "语文", "数学", "英语"],
      ["小贝", 98, 99, 92],
      ["聪聪", 95, 91, 95]]
with open("scores.csv","w",encoding="utf-8",newline='') as a:
    writer=csv.writer(a)
    writer.writerows(data)