用python和tkinter库编写一个学生管理系统，实现增删查改

好的，我可以帮你编写一个基础的学生管理系统，使用Python和Tkinter库实现增删查改功能。下面是代码实现：

import tkinter as tk

class Student:
    def __init__(self, name, age, gender, score):
        self.name = name
        self.age = age
        self.gender = gender
        self.score = score

class StudentManagementSystem:
    def __init__(self, master):
        self.master = master
        self.master.title("学生管理系统")
        
        # 创建列表框
        self.listbox = tk.Listbox(self.master, width=50)
        self.listbox.grid(row=0, column=0, rowspan=6)
        
        # 创建标签和输入框
        tk.Label(self.master, text="姓名").grid(row=0, column=1)
        self.name_entry = tk.Entry(self.master)
        self.name_entry.grid(row=0, column=2)
        
        tk.Label(self.master, text="年龄").grid(row=1, column=1)
        self.age_entry = tk.Entry(self.master)
        self.age_entry.grid(row=1, column=2)
        
        tk.Label(self.master, text="性别").grid(row=2, column=1)
        self.gender_entry = tk.Entry(self.master)
        self.gender_entry.grid(row=2, column=2)
        
        tk.Label(self.master, text="成绩").grid(row=3, column=1)
        self.score_entry = tk.Entry(self.master)
        self.score_entry.grid(row=3, column=2)
        
        # 创建按钮
        tk.Button(self.master, text="添加", command=self.add_student).grid(row=4, column=1)
        tk.Button(self.master, text="删除", command=self.delete_student).grid(row=4, column=2)
        tk.Button(self.master, text="修改", command=self.modify_student).grid(row=5, column=1)
        tk.Button(self.master, text="查询", command=self.search_student).grid(row=5, column=2)
        
        # 创建学生列表
        self.students = []
    
    # 添加学生
    def add_student(self):
        name = self.name_entry.get()
        age = self.age_entry.get()
        gender = self.gender_entry.get()
        score = self.score_entry.get()
        
        student = Student(name, age, gender, score)
        self.students.append(student)
        
        self.listbox.insert(tk.END, f"{name} {age} {gender} {score}")
        
        self.name_entry.delete(0, tk.END)
        self.age_entry.delete(0, tk.END)
        self.gender_entry.delete(0, tk.END)
        self.score_entry.delete(0, tk.END)
    
    # 删除学生
    def delete_student(self):
        selection = self.listbox.curselection()
        if selection:
            index = selection[0]
            self.listbox.delete(index)
            self.students.pop(index)
    
    # 修改学生
    def modify_student(self):
        selection = self.listbox.curselection()
        if selection:
            index = selection[0]
            name = self.name_entry.get()
            age = self.age_entry.get()
            gender = self.gender_entry.get()
            score = self.score_entry.get()
            
            self.students[index].name = name
            self.students[index].age = age
            self.students[index].gender = gender
            self.students[index].score = score
            
            self.listbox.delete(index)
            self.listbox.insert(index, f"{name} {age} {gender} {score}")
    
    # 查询学生
    def search_student(self):
        name = self.name_entry.get()
        age = self.age_entry.get()
        gender = self.gender_entry.get()
        score = self.score_entry.get()
        
        for i, student in enumerate(self.students):
            if (not name or student.name == name) and \
               (not age or student.age == age) and \
               (not gender or student.gender == gender) and \
               (not score or student.score == score):
                self.listbox.selection_clear(0, tk.END)
                self.listbox.selection_set(i)
                self.listbox.activate(i)
                break
    
if __name__ == '__main__':
    root = tk.Tk()
    app = StudentManagementSystem(root)
    root.mainloop()

使用方法：

1. 运行代码，打开学生管理系统窗口。
2. 在输入框中输入学生的姓名、年龄、性别和成绩，并点击“添加”按钮，即可添加学生信息到列表框中。
3. 选中列表框中的学生信息，点击“删除”按钮，即可删除该学生信息。
4. 选中列表框中的学生信息，修改输入框中的信息，点击“修改”按钮，即可修改该学生信息。
5. 在输入框中输入要查询的学生信息，点击“查询”按钮，即可选中符合条件的学生信息。