用python+tkinter+mysql写一个图书管理系统

好的，下面是一个简单的图书管理系统的实现：

首先，我们需要安装 MySQL 和 Python 的 MySQL 连接库 `mysql-connector-python`。可以通过以下命令进行安装：

# 安装 MySQL
sudo apt-get update
sudo apt-get install mysql-server

# 安装 mysql-connector-python 库
pip install mysql-connector-python

接下来，我们需要创建一个名为 `book_management` 的数据库，并创建一个名为 `books` 的数据表，用于存储图书信息。数据表中包含以下字段：`id`、`title`、`author`、`isbn`、`publisher`、`price` 和 `quantity`。

可以通过以下 SQL 语句进行创建：

CREATE DATABASE book_management;

USE book_management;

CREATE TABLE books (
    id INT AUTO_INCREMENT PRIMARY KEY,
    title VARCHAR(255),
    author VARCHAR(255),
    isbn VARCHAR(255),
    publisher VARCHAR(255),
    price FLOAT,
    quantity INT
);

接下来，我们可以开始编写 Python 代码。我们将使用 Python 的 tkinter 库来创建一个简单的 GUI，用于添加、删除、更新和查询图书信息。

以下是完整的代码：

import mysql.connector
from tkinter import *
from tkinter import messagebox

# 连接 MySQL 数据库
mydb = mysql.connector.connect(
    host="localhost",
    user="root",
    password="yourpassword",
    database="book_management"
)

# 创建游标
mycursor = mydb.cursor()

# 创建窗口
window = Tk()
window.title("图书管理系统")
window.geometry("500x300")

# 添加图书
def add_book():
    # 获取输入的图书信息
    title = title_entry.get()
    author = author_entry.get()
    isbn = isbn_entry.get()
    publisher = publisher_entry.get()
    price = price_entry.get()
    quantity = quantity_entry.get()

    # 检查输入是否为空
    if not all([title, author, isbn, publisher, price, quantity]):
        messagebox.showwarning("警告", "请填写完整信息！")
        return

    # 插入数据到数据库
    sql = "INSERT INTO books (title, author, isbn, publisher, price, quantity) VALUES (%s, %s, %s, %s, %s, %s)"
    val = (title, author, isbn, publisher, price, quantity)
    mycursor.execute(sql, val)
    mydb.commit()

    messagebox.showinfo("提示", "添加成功！")
    clear_entries()

# 删除图书
def delete_book():
    # 获取输入的图书编号
    book_id = book_id_entry.get()

    # 检查输入是否为空
    if not book_id:
        messagebox.showwarning("警告", "请输入图书编号！")
        return

    # 从数据库中删除数据
    sql = "DELETE FROM books WHERE id = %s"
    val = (book_id,)
    mycursor.execute(sql, val)
    mydb.commit()

    if mycursor.rowcount == 0:
        messagebox.showwarning("警告", "未找到该图书！")
    else:
        messagebox.showinfo("提示", "删除成功！")

    clear_entries()

# 更新图书
def update_book():
    # 获取输入的图书信息和编号
    title = title_entry.get()
    author = author_entry.get()
    isbn = isbn_entry.get()
    publisher = publisher_entry.get()
    price = price_entry.get()
    quantity = quantity_entry.get()
    book_id = book_id_entry.get()

    # 检查输入是否为空
    if not all([title, author, isbn, publisher, price, quantity, book_id]):
        messagebox.showwarning("警告", "请填写完整信息！")
        return

    # 更新数据库中的数据
    sql = "UPDATE books SET title = %s, author = %s, isbn = %s, publisher = %s, price = %s, quantity = %s WHERE id = %s"
    val = (title, author, isbn, publisher, price, quantity, book_id)
    mycursor.execute(sql, val)
    mydb.commit()

    if mycursor.rowcount == 0:
        messagebox.showwarning("警告", "未找到该图书！")
    else:
        messagebox.showinfo("提示", "更新成功！")

    clear_entries()

# 查询图书
def search_book():
    # 获取输入的图书编号
    book_id = book_id_entry.get()

    # 检查输入是否为空
    if not book_id:
        messagebox.showwarning("警告", "请输入图书编号！")
        return

    # 从数据库中查询数据
    sql = "SELECT * FROM books WHERE id = %s"
    val = (book_id,)
    mycursor.execute(sql, val)
    result = mycursor.fetchone()

    if result is None:
        messagebox.showwarning("警告", "未找到该图书！")
        clear_entries()
    else:
        title_entry.delete(0, END)
        title_entry.insert(0, result[1])
        author_entry.delete(0, END)
        author_entry.insert(0, result[2])
        isbn_entry.delete(0, END)
        isbn_entry.insert(0, result[3])
        publisher_entry.delete(0, END)
        publisher_entry.insert(0, result[4])
        price_entry.delete(0, END)
        price_entry.insert(0, result[5])
        quantity_entry.delete(0, END)
        quantity_entry.insert(0, result[6])

# 清空输入框
def clear_entries():
    book_id_entry.delete(0, END)
    title_entry.delete(0, END)
    author_entry.delete(0, END)
    isbn_entry.delete(0, END)
    publisher_entry.delete(0, END)
    price_entry.delete(0, END)
    quantity_entry.delete(0, END)

# 添加标签和输入框
book_id_label = Label(window, text="编号：")
book_id_label.grid(row=0, column=0, padx=5, pady=5)
book_id_entry = Entry(window)
book_id_entry.grid(row=0, column=1, padx=5, pady=5)

title_label = Label(window, text="书名：")
title_label.grid(row=1, column=0, padx=5, pady=5)
title_entry = Entry(window)
title_entry.grid(row=1, column=1, padx=5, pady=5)

author_label = Label(window, text="作者：")
author_label.grid(row=2, column=0, padx=5, pady=5)
author_entry = Entry(window)
author_entry.grid(row=2, column=1, padx=5, pady=5)

isbn_label = Label(window, text="ISBN：")
isbn_label.grid(row=3, column=0, padx=5, pady=5)
isbn_entry = Entry(window)
isbn_entry.grid(row=3, column=1, padx=5, pady=5)

publisher_label = Label(window, text="出版社：")
publisher_label.grid(row=4, column=0, padx=5, pady=5)
publisher_entry = Entry(window)
publisher_entry.grid(row=4, column=1, padx=5, pady=5)

price_label = Label(window, text="价格：")
price_label.grid(row=5, column=0, padx=5, pady=5)
price_entry = Entry(window)
price_entry.grid(row=5, column=1, padx=5, pady=5)

quantity_label = Label(window, text="数量：")
quantity_label.grid(row=6, column=0, padx=5, pady=5)
quantity_entry = Entry(window)
quantity_entry.grid(row=6, column=1, padx=5, pady=5)

# 添加按钮
add_button = Button(window, text="添加", command=add_book)
add_button.grid(row=7, column=0, padx=5, pady=5)

delete_button = Button(window, text="删除", command=delete_book)
delete_button.grid(row=7, column=1, padx=5, pady=5)

update_button = Button(window, text="更新", command=update_book)
update_button.grid(row=7, column=2, padx=5, pady=5)

search_button = Button(window, text="查询", command=search_book)
search_button.grid(row=0, column=2, padx=5, pady=5)

clear_button = Button(window, text="清空", command=clear_entries)
clear_button.grid(row=7, column=3, padx=5, pady=5)

# 主循环
window.mainloop()

在运行程序之前，请确保替换以下行中的 MySQL 用户名和密码：

mydb = mysql.connector.connect(
    host="localhost",
    user="root",
    password="yourpassword",
    database="book_management"
)

运行程序后，您应该会看到一个简单的 GUI 窗口，其中包含用于添加、删除、更新和查询图书信息的输入框和按钮。当您执行这些操作时，它们将与 MySQL 数据库进行交互，并将数据存储在 `books` 表中。

这只是一个简单的示例，您可以根据自己的需求进行修改和扩展。