class Student:
def __init__(self, name, age, grade):
self.name = name
self.age = age
self.grade = grade
class StudentManagementSystem:
def __init__(self):
self.students = []
def add_student(self, name, age, grade):
student = Student(name, age, grade)
self.students.append(student)
print("学生已添加")
def find_student(self, name):
for student in self.students:
if student.name == name:
return student
return None
def print_all_students(self):
if len(self.students) == 0:
print("当前没有学生")
else:
for student in self.students:
print(f"姓名: {student.name}, 年龄: {student.age}, 成绩: {student.grade}")
# 测试学生管理系统
sms = StudentManagementSystem()
while True:
print("-------------------------------")
print("请选择要执行的操作:")
print("1. 添加学生")
print("2. 查找学生")
print("3. 打印所有学生")
print("4. 退出")
choice = input("请输入选择的操作 (1/2/3/4): ")
if choice == "1":
name = input("请输入学生姓名: ")
age = int(input("请输入学生年龄: "))
grade = int(input("请输入学生成绩: "))
sms.add_student(name, age, grade)
elif choice == "2":
name = input("请输入要查找的学生姓名: ")
student = sms.find_student(name)
if student:
print(f"姓名: {student.name}, 年龄: {student.age}, 成绩: {student.grade}")
else:
print("未找到该学生")
elif choice == "3":
sms.print_all_students()
elif choice == "4":
break
else:
print("无效的选择")
此代码创建了两个类:Student
和 StudentManagementSystem
。Student
类表示一个学生,StudentManagementSystem
类表示学生管理系统。学生管理系统具有添加学生、查找学生和打印所有学生的功能。
您可以运行此代码并按照提示进行操作,添加、查找和打印学生信息。