python学生学籍管理系统

以下是一个使用Python实现的学生学籍管理系统的示例代码，包括添加学生信息、查询学生信息、修改学生信息和删除学生信息等功能：

# 定义学生类
class Student:
    def __init__(self, name, age, gender, id):
        self.name = name
        self.age = age
        self.gender = gender
        self.id = id

# 定义学生管理系统类
class StudentManagementSystem:
    def __init__(self):
        self.students = []

    # 添加学生信息
    def add_student(self, student):
        self.students.append(student)

    # 查询学生信息
    def query_student(self, id):
        for student in self.students:
            if student.id == id:
                return student
        return None

    # 修改学生信息
    def modify_student(self, id, name, age, gender):
        for student in self.students:
            if student.id == id:
                student.name = name
                student.age = age
                student.gender = gender
                return True
        return False

    # 删除学生信息
    def delete_student(self, id):
        for student in self.students:
            if student.id == id:
                self.students.remove(student)
                return True
        return False

# 测试代码
if __name__ == '__main__':
    sms = StudentManagementSystem()
    s1 = Student('Tom', 18, 'male', '001')
    s2 = Student('Lucy', 19, 'female', '002')
    sms.add_student(s1)
    sms.add_student(s2)
    print(sms.query_student('001').name) # 输出：Tom
    sms.modify_student('001', 'Jerry', 20, 'male')
    print(sms.query_student('001').name) # 输出：Jerry
    sms.delete_student('001')
    print(sms.query_student('001')) # 输出：None