2.编写一个学生和教师数据输入和显示程序，学生数据有编号、姓名、班号、语文成绩、英语成绩、数学成绩，教师数据有编号、姓名、职称和部门。班级有10名同学，写代码完成老师录入一个班级的学生成绩，统计输出该班级每位同学的平均成绩，以及该班级各科目的平均成绩。

以下是一个简单的Python程序，可以实现学生和教师数据的输入和显示功能，以及统计输出班级学生的平均成绩和各科目平均成绩：

class Student:
    def __init__(self, id, name, class_id, chinese_score, english_score, math_score):
        self.id = id
        self.name = name
        self.class_id = class_id
        self.chinese_score = chinese_score
        self.english_score = english_score
        self.math_score = math_score

class Teacher:
    def __init__(self, id, name, title, department):
        self.id = id
        self.name = name
        self.title = title
        self.department = department

class Class:
    def __init__(self, teacher, students):
        self.teacher = teacher
        self.students = students

    def get_student_avg_score(self):
        total_chinese_score = 0
        total_english_score = 0
        total_math_score = 0
        for student in self.students:
            total_chinese_score += student.chinese_score
            total_english_score += student.english_score
            total_math_score += student.math_score
        chinese_avg_score = total_chinese_score / len(self.students)
        english_avg_score = total_english_score / len(self.students)
        math_avg_score = total_math_score / len(self.students)
        return (chinese_avg_score, english_avg_score, math_avg_score)

    def get_subject_avg_score(self):
        total_score = 0
        for student in self.students:
            total_score += student.chinese_score + student.english_score + student.math_score
        total_avg_score = total_score / (len(self.students) * 3)
        return total_avg_score

def input_student():
    students = []
    for i in range(1, 11):
        id = input("请输入第{}个学生的编号：".format(i))
        name = input("请输入第{}个学生的姓名：".format(i))
        class_id = input("请输入第{}个学生的班级编号：".format(i))
        chinese_score = float(input("请输入第{}个学生的语文成绩：".format(i)))
        english_score = float(input("请输入第{}个学生的英语成绩：".format(i)))
        math_score = float(input("请输入第{}个学生的数学成绩：".format(i)))
        student = Student(id, name, class_id, chinese_score, english_score, math_score)
        students.append(student)
    return students

def input_teacher():
    id = input("请输入教师的编号：")
    name = input("请输入教师的姓名：")
    title = input("请输入教师的职称：")
    department = input("请输入教师的部门：")
    teacher = Teacher(id, name, title, department)
    return teacher

def main():
    students = input_student()
    teacher = input_teacher()
    my_class = Class(teacher, students)
    chinese_avg_score, english_avg_score, math_avg_score = my_class.get_student_avg_score()
    total_avg_score = my_class.get_subject_avg_score()
    print("班级各科目平均成绩为：")
    print("语文：{:.2f}，英语：{:.2f}，数学：{:.2f}".format(chinese_avg_score, english_avg_score, math_avg_score))
    print("班级学生总体平均成绩为：{:.2f}".format(total_avg_score))

if __name__ == "__main__":
    main()

你可以按照程序提示输入学生和教师的信息，然后程序会输出班级各科目的平均成绩和班级学生总体平均成绩。