创建csv文件，在里面录入数据

#打开文件
#file = open(r"h:\harrypy\score.csv","w")
#用with 可以不用关闭文件，with会自动关
with open(r"h:\harrypy\score.csv","w")as file:




    file.write("姓名,语文,数学,英语\n")# \n 为换行
    #循环让用户输入学生信息，知道姓名为空停止输入
    while True:
        name = input("请输入姓名")
        if name =='':
            break
        yuwen =input("语文成绩")
        shuxue = input("数学成绩")
        yingyu = input("英语成绩")
        #在csv文件中写入数据
        file.write(name + "," + yuwen + ","+ shuxue + "," + yingyu + "\n")

另外一种表达方式，一定要写file . close()

#打开文件
file = open(r"H:\harrypy\harry3.csv","w")
#做写入操作
#file.write("月份")
#file.write(",")
#file.write("niha")
#file.write("我,喜欢,常青\n") #第一行
#file.write("harry,love,hannah")
file.write("月份,姓名,基本工资\n")#第一行
file.write("6月,haary,")
file.write(str(10000))
file.write("\n")
#关闭文件
file.close()