使用Python写一个学生管理系统

好的，以下是一个简单的使用Python编写的学生管理系统：

students = []

class Student:
    def __init__(self, name, age, grade):
        self.name = name
        self.age = age
        self.grade = grade

    def __str__(self):
        return f"Name: {self.name}\nAge: {self.age}\nGrade: {self.grade}"

def add_student():
    print("Add Student")
    name = input("Enter name: ")
    age = input("Enter age: ")
    grade = input("Enter grade: ")
    student = Student(name, age, grade)
    students.append(student)
    print("Student added successfully!")

def view_student():
    print("View Student")
    for student in students:
        print(student)
        print("---------------------")

def delete_student():
    print("Delete Student")
    name = input("Enter name: ")
    for i, student in enumerate(students):
        if student.name == name:
            students.pop(i)
            print("Student deleted successfully!")
            return
    print("Student not found!")

def main():
    while True:
        print("\nStudent Management System\n")
        print("1. Add Student")
        print("2. View Students")
        print("3. Delete Student")
        print("4. Exit")
        choice = input("Enter your choice: ")

        if choice == "1":
            add_student()
        elif choice == "2":
            view_student()
        elif choice == "3":
            delete_student()
        elif choice == "4":
            break
        else:
            print("Invalid choice. Try again.")

if __name__ == "__main__":
    main()

这个学生管理系统包括添加、查看和删除学生的功能。程序启动时，它会打印一个菜单，让用户选择要执行的操作。选择“添加学生”会提示用户输入学生的姓名、年龄和成绩，并将其添加到系统中。选择“查看学生”会列出所有已添加的学生。选择“删除学生”会提示用户输入要删除的学生的姓名，并从系统中删除该学生。最后，选择“退出”将退出程序。