1

面向对象学生系统/ui/console_ui.py

@@ -0,0 +1,197 @@
+import sys
+from datetime import date
+from typing import Optional
+from models.student import Student
+from bll.student_service import StudentService
+
+
+class ConsoleUI:
+    """控制台用户界面"""
+
+    def __init__(self, service: StudentService):
+        self.service = service
+
+    def run(self):
+        """运行主界面"""
+        while True:
+            self._display_main_menu()
+            choice = input("请选择操作: ").strip()
+
+            if choice == '1':
+                self._add_student()
+            elif choice == '2':
+                self._delete_student()
+            elif choice == '3':
+                self._update_student()
+            elif choice == '4':
+                self._query_students()
+            elif choice == '5':
+                self._statistics()
+            elif choice == '6':
+                self._import_export()
+            elif choice == '7':
+                self._clear_all_data()
+            elif choice == '0':
+                print("感谢使用学生信息管理系统，再见！")
+                sys.exit(0)
+            else:
+                print("无效选择，请重新输入！")
+
+    def _display_main_menu(self):
+        """显示主菜单"""
+        print("\n" + "=" * 30)
+        print("    学生信息管理系统    ")
+        print("=" * 30)
+        print("1. 添加学生信息")
+        print("2. 删除学生信息")
+        print("3. 更新学生信息")
+        print("4. 查询学生信息")
+        print("5. 统计分析")
+        print("6. 数据导入导出")
+        print("7. 清空所有学生信息")
+        print("0. 退出系统")
+        print("=" * 30)
+
+    def _add_student(self):
+        """添加学生"""
+        print("\n" + "=" * 30)
+        print("    添加学生信息    ")
+        print("=" * 30)
+
+        student = self._input_student_info()
+        if student is None:
+            return
+
+        success, msg = self.service.add_student(student)
+        print(msg)
+
+    def _delete_student(self):
+        """删除学生"""
+        print("\n" + "=" * 30)
+        print("    删除学生信息    ")
+        print("=" * 30)
+
+        id_card = input("请输入要删除学生的身份证号: ").strip()
+        success, msg = self.service.delete_student(id_card)
+        print(msg)
+
+    def _update_student(self):
+        """更新学生信息"""
+        print("\n" + "=" * 30)
+        print("    更新学生信息    ")
+        print("=" * 30)
+
+        id_card = input("请输入要更新学生的身份证号: ").strip()
+        existing = self.service.get_student_by_id(id_card)
+        if not existing:
+            print("学生不存在")
+            return
+
+        print("\n当前学生信息:")
+        self._display_student_details(existing)
+
+        print("\n请输入新的学生信息(留空保持原值):")
+        student = self._input_student_info(existing)
+        if student is None:
+            return
+
+        success, msg = self.service.update_student(student)
+        print(msg)
+
+    def _query_students(self):
+        """查询学生信息"""
+        while True:
+            print("\n" + "=" * 30)
+            print("    查询学生信息    ")
+            print("=" * 30)
+            print("1. 查询所有学生")
+            print("2. 按身份证号查询")
+            print("3. 按学号查询")
+            print("4. 按姓名查询")
+            print("5. 按班级查询")
+            print("6. 按专业查询")
+            print("7. 返回上一级")
+            print("=" * 30)
+
+            choice = input("请选择操作: ").strip()
+
+            if choice == '1':
+                self._list_all_students()
+            elif choice == '2':
+                self._query_by_id_card()
+            elif choice == '3':
+                self._query_by_stu_id()
+            elif choice == '4':
+                self._query_by_name()
+            elif choice == '5':
+                self._query_by_class()
+            elif choice == '6':
+                self._query_by_major()
+            elif choice == '7':
+                return
+            else:
+                print("无效选择，请重新输入！")
+
+    def _statistics(self):
+        """统计分析"""
+        while True:
+            print("\n" + "=" * 30)
+            print("    统计分析    ")
+            print("=" * 30)
+            print("1. 学生总数")
+            print("2. 各专业人数统计")
+            print("3. 平均身高")
+            print("4. 平均体重")
+            print("5. 返回上一级")
+            print("=" * 30)
+
+            choice = input("请选择操作: ").strip()
+
+            if choice == '1':
+                count = self.service.count_total_students()
+                print(f"\n学生总数: {count}")
+            elif choice == '2':
+                stats = self.service.count_by_major()
+                print("\n各专业人数统计:")
+                for major, count in stats.items():
+                    print(f"{major}: {count}人")
+            elif choice == '3':
+                avg_height = self.service.calculate_avg_height()
+                print(f"\n全体学生平均身高: {avg_height['all']:.1f}cm")
+            elif choice == '4':
+                # 类似实现平均体重
+                pass
+            elif choice == '5':
+                return
+            else:
+                print("无效选择，请重新输入！")
+
+    def _input_student_info(self, existing: Student = None) -> Optional[Student]:
+        """输入学生信息"""
+        try:
+            name = self._get_input("姓名", existing.name if existing else None, required=True)
+            id_card = self._get_input("身份证号", existing.id_card if existing else None, required=True)
+            stu_id = self._get_input("学号", existing.stu_id if existing else None, required=True)
+            gender = self._get_gender_input(existing.gender if existing else None)
+            height = self._get_int_input("身高(cm)", existing.height if existing else None, 50, 250)
+            weight = self._get_float_input("体重(kg)", existing.weight if existing else None, 5, 300)
+            enrollment_date = self._get_date_input("入学日期", existing.enrollment_date if existing else None)
+            class_name = self._get_input("班级", existing.class_name if existing else None)
+            major = self._get_input("专业", existing.major if existing else None)
+
+            return Student(
+                name=name,
+                id_card=id_card,
+                stu_id=stu_id,
+                gender=gender,
+                height=height,
+                weight=weight,
+                enrollment_date=enrollment_date,
+                class_name=class_name,
+                major=major
+            )
+        except ValueError as e:
+            print(f"输入错误: {e}")
+            return None
+
+    # 其他辅助方法...