GPT答：

7i24.cn

# 面向对象：

# 学生类
class Student():
    def __init__(self, name, age, gender):
        self.name = name
        self.age = age
        self.gender = gender
    
    def infos(self):
        print(f"姓名：{self.name}，年龄：{self.age}，性别：{self.gender}")

# 学生信息管理类        
class StudentManager():
    students = []
    # 添加学生
    def add_student(self, student):
        # 校验学生是否存在
        for item in self.students:
            if item.name == student.name:
                print("添加失败！学生已经存在！")
                return
        # 添加学生
        self.students.append(student)
        print("添加成功！")

    # 删除学生
    def remove_student(self, name):
        for i, item in enumerate(self.students):
            if item.name == name:
                del self.students[i]
                print("学生信息删除成功！")
                return
    
    # 修改学生
    def modify_student(self, student):
        for i, item in enumerate(self.students):
            if item.name == student.name:
                self.students[i] = student
                print("学生信息修改成功！")
                return

    # 查看学生
    def show_student(self):
        if self.students:
            for item in self.students:
                item.infos()
        else:
            print("无学生信息！")

# 调用
if __name__ == "__main__":
    sm = StudentManager()
    stu = Student("小明", 18, "男")
    sm.add_student(stu)
    stu2 = Student("小红", 19, "女")
    sm.add_student(stu2)
    stu3 = Student("小强", 20, "男")
    sm.add_student(stu3)
    stu4 = Student("小明", 22, "男")
    sm.modify_student(stu4)
    sm.remove_student("小红")
    sm.show_student()