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import json
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class StudentManagementSystem:
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def __init__(self):
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# 存储学员信息的列表
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self.students = []
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# 记录当前操作，用于提示用户
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self.current_operation = None
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def display_menu(self):
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# 显示系统菜单
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print("\n学生信息管理系统")
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print("1. 添加学员信息")
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print("2. 删除学员信息")
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print("3. 修改学员信息")
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print("4. 保存学员信息")
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print("5. 查询学员信息")
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print("6. 显示学员信息")
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print("7. 退出系统")
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def add_student(self, name, gender, phone_number):
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# 添加学员信息
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student = {
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"姓名": name,
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"性别": gender,
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"手机号": phone_number
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}
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self.students.append(student)
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self.current_operation = "添加学员信息"
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def delete_student(self, name):
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# 删除学员信息
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for student in self.students:
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if student["姓名"] == name:
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self.students.remove(student)
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self.current_operation = "删除学员信息"
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return True
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return False
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def modify_student(self, name, new_data):
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# 修改学员信息
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for i, student in enumerate(self.students):
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if student["姓名"] == name:
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self.students[i] = new_data
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self.current_operation = "修改学员信息"
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return True
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return False
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def save_data(self, filename="student_data.json"):
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# 保存学员信息到文件（JSON格式）
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with open(filename, "w", encoding="utf-8") as file:
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json.dump(self.students, file, ensure_ascii=False, indent=4)
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print("数据保存成功！")
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def query_student(self, name):
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# 查询学员信息
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for student in self.students:
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if student["姓名"] == name:
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return student
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return None
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def display_students(self):
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# 显示所有学员信息
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if not self.students:
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print("暂无学员信息")
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else:
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for student in self.students:
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print(student)
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def run(self):
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while True:
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# 运行系统主循环
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self.display_menu()
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choice = input("请输入您的选择：")
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if choice == "1":
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# 添加学员信息
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name = input("请输入姓名：")
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gender = input("请输入性别：")
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phone_number = input("请输入手机号：")
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self.add_student(name, gender, phone_number)
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elif choice == "2":
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# 删除学员信息
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name = input("请输入要删除的学员姓名：")
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if self.delete_student(name):
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print("学员信息删除成功！")
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else:
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print("未找到学员信息，删除失败！")
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elif choice == "3":
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# 修改学员信息
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name = input("请输入要修改的学员姓名：")
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new_data = {
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"姓名": input("请输入新的姓名："),
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"性别": input("请输入新的性别："),
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"手机号": input("请输入新的手机号：")
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}
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if self.modify_student(name, new_data):
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print("学员信息修改成功！")
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else:
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print("未找到学员信息，修改失败！")
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elif choice == "4":
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# 保存学员信息到文件
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self.save_data()
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elif choice == "5":
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# 查询学员信息
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name = input("请输入要查询的学员姓名：")
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student = self.query_student(name)
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if student:
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print("学员信息查询成功：", student)
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else:
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print("未找到学员信息！")
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elif choice == "6":
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# 显示所有学员信息
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self.display_students()
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elif choice == "7":
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# 退出系统
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print("感谢使用学生信息管理系统，再见！")
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break
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else:
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print("无效的选择，请重新输入。")
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if self.current_operation:
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# 提示用户操作完成
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print(f"{self.current_operation}操作完成，数据已更新。")
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self.current_operation = None
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if __name__ == "__main__":
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# 实例化学生信息管理系统并运行
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sms = StudentManagementSystem()
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sms.run()
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