### 使用Python和Tkinter开发学生信息管理系统 以下是一个基于Python和Tkinter的学生信息管理系统的示例代码。该系统实现了基本的功能，包括添加、删除、修改和查询学生信息，并将数据存储在文本文件中。 ```python import tkinter as tk from tkinter import messagebox # 初始化主窗口 def create_main_window(): root = tk.Tk() root.title("学生信息管理系统") return root # 添加学生信息 def add_student(students_list, name_entry, score_entry): name = name_entry.get() score = score_entry.get() if name and score: students_list.insert(tk.END, f"{name} - {score}") save_students_to_file(f"{name} - {score}") name_entry.delete(0, tk.END) score_entry.delete(0, tk.END) else: messagebox.showwarning("警告", "请输入完整的学生信息！") # 删除选中的学生信息 def delete_student(students_list): try: selected_index = students_list.curselection()[0] students_list.delete(selected_index) save_students_to_file("\n".join(students_list.get(0, tk.END))) except IndexError: messagebox.showwarning("警告", "请先选择要删除的学生信息！") # 修改学生信息 def modify_student(students_list, name_entry, score_entry): try: selected_index = students_list.curselection()[0] new_name = name_entry.get() new_score = score_entry.get() if new_name and new_score: students_list.delete(selected_index) students_list.insert(selected_index, f"{new_name} - {new_score}") save_students_to_file("\n".join(students_list.get(0, tk.END))) name_entry.delete(0, tk.END) score_entry.delete(0, tk.END) else: messagebox.showwarning("警告", "请输入完整的新学生信息！") except IndexError: messagebox.showwarning("警告", "请先选择要修改的学生信息！") # 查询学生信息 def search_student(students_list, search_entry): keyword = search_entry.get().strip() if not keyword: load_students_to_list(students_list) else: filtered_students = [student for student in students_list.get(0, tk.END) if keyword in student] students_list.delete(0, tk.END) for student in filtered_students: students_list.insert(tk.END, student) # 保存学生信息到文件 def save_students_to_file(data): with open("students.txt", "w") as file: file.write(data) # 从文件加载学生信息 def load_students_from_file(): try: with open("students.txt", "r") as file: return file.readlines() except FileNotFoundError: return [] # 将学生信息加载到列表框 def load_students_to_list(students_list): students_list.delete(0, tk.END) students = load_students_from_file() for student in students: students_list.insert(tk.END, student.strip()) # 创建界面 root = create_main_window() # 学生信息列表框 students_list = tk.Listbox(root, width=50, height=15) students_list.grid(row=0, column=0, rowspan=6, padx=10, pady=10) # 加载学生信息 load_students_to_list(students_list) # 输入框和按钮 name_label = tk.Label(root, text="姓名:") name_label.grid(row=0, column=1) name_entry = tk.Entry(root) name_entry.grid(row=0, column=2) score_label = tk.Label(root, text="成绩:") score_label.grid(row=1, column=1) score_entry = tk.Entry(root) score_entry.grid(row=1, column=2) add_button = tk.Button(root, text="添加", command=lambda: add_student(students_list, name_entry, score_entry)) add_button.grid(row=2, column=1, columnspan=2, pady=5) delete_button = tk.Button(root, text="删除", command=lambda: delete_student(students_list)) delete_button.grid(row=3, column=1, columnspan=2, pady=5) modify_button = tk.Button(root, text="修改", command=lambda: modify_student(students_list, name_entry, score_entry)) modify_button.grid(row=4, column=1, columnspan=2, pady=5) search_entry = tk.Entry(root) search_entry.grid(row=5, column=1) search_button = tk.Button(root, text="查询", command=lambda: search_student(students_list, search_entry)) search_button.grid(row=5, column=2, pady=5) root.mainloop() ``` 此代码实现了一个简单的学生信息管理系统，具有添加、删除、修改和查询功能[^1]。通过使用`tkinter`库构建GUI界面，所有学生信息被存储在名为`students.txt`的文本文件中[^2]。