学生管理系统增删改查菜鸟代码

stu1={"name":"张三","age":4,"gender":"男","height":178}

stu2={"name":"小明","age":4,"gender":"女","height":168}

stu3={"name":"李四","age":4,"gender":"男","height":148}

stu4={"name":"王五","age":4,"gender":"男","height":158}

students = [stu1,stu2,stu3,stu4]

while True:

    print("\n\n---------欢迎登陆学生系统---------")

    print("1.增加学生\n2.删除学生\n3.修改学生\n4.查找学生\n5.退出程序")

    num = int(input("请输入你的编号"))

    if num ==1:

        name=input("请输入名字")

        age=int(input("请输入年纪"))

        gender=input("请输入性别")

        height=int(input("请输入身高"))

        stu5={"name":name,"age":age,"gender":gender,"height":height}

        students.append(stu5)

        for stu in students:

            print("------------")

            for key,value in stu.items():

                print(key,value)

    elif num == 2:

        print ("1.按照序号删除\n2.全部删除")

        choose = int(input("请选择你的操作"))

        if choose ==1:

            stu_number =int(input("请选择要删除学生编号"))

            students:pop(stu_number-1)

            print("该学生已经被删除")

            for stu in students:

                print("----------")

                for key,value in stu.items():

                    print(key,value)

        elif choose == 2:

            yes_no=input("确定要执行改操作吗？yes/no")

            if yes_no == "yes":

                print("____________")

                print("学生数据已经清除")

                students.clear()

    elif num ==3:

        print("当前有"+str(len(students))+"个学生")

        stu_number = int (input("请输入要修改学生的编号"))

        students.pop(stu_number-1)

        name=input("请输入更改名字")

        age=int(input("请输更改入年纪"))

        gender=input("请输更改入性别")

        height=int(input("请输入更改身高"))

        stu5={"name":name,"age":age,"gender":gender,"height":height}

        students.insert(stu_number-1,stu5)

        for stu in students:

                print("----------")

                for key,value in stu.items():

                    print(key,value)

    elif num == 4:

        print ("当前有"+str(len(students))+"个学生")

        for stu in students:

            print("-----------")

            for key,value in stu.items():

                print (key,value)

    elif num == 5:

        yes_no = input("您确定要退出吗？yes_no")

        if yes_no == "yes":

            print("您已经退出系统")

            break

    else:

        print("您输入的要错误，请重新输入")