python学生列表的操作

定义一个列表，这个列表中存储学生，学生也是也是一个列表
stus = [[1235,"小张",22,"15899887766"],
        [1236,"小李",20,"15899887777"],
        [1237,"小王",21,"15899887788"],
        [1238,"小赵",23,"15899887799"]]

1.遍历所有的学生

2.修改学生的年龄，给每个学生加1

3.给每个学生信息中添加 成绩和住址信息

4.拿出这个列表中 年龄大于21岁的学生，并添加到新列表中

代码如下：

import random
def printstu():
    stus = [[1235, "小张", 22, "15899887766"],
            [1236, "小李", 20, "15899887777"],
            [1237, "小王", 21, "15899887788"],
            [1238, "小赵", 23, "15899887799"]]
    for s in stus:
        print(s)
        s[2]+=1
        newstus=[]
        s.append(random.randint(60,100))
        n=random.randint(1,9)     #1~8
        s.append(f"科技{n}路")
        if s[2]>21:    #年龄大于21
            newstus.append(s)
            #print(stus)
            print(newstus)

if __name__ == "__main__":
    printstu()