图书管理系统：界面设计的比较丑请忽略
数据要求
根据系统的需求，将需要的数据分类记录如下：
（1） 图书信息：编号、名称、储量、作者、出版时间
（2） 图书借阅信息：读者学号、图书编号、记录编号、借书日期、还书日期
（3） 读者信息：学号、姓名、性别、班级、剩余最大借书量
（4） 管理者信息：管理者姓名、职工号、权限级别

在这里插入图片描述

import tkinter as tk
import tkinter.messagebox as msg
import pymysql
import os

BACK_PATH="resources"+os.sep+"background.gif"


def check_book():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    a = input_book.get()
    sql = "SELECT * FROM book WHERE bname = '%s'" % (a)
    cursor.execute(sql)
    results = cursor.fetchone()
    if results:
        root3 = tk.Tk()
        root3.title('查询到的书')
        val = "您要查询的书号为：%s" % (results[0])
        print1 = tk.Label(root3, text=val)
        print1.grid(row=0, column=0, padx=10, pady=5)
        val = "您要查询的书号为：%s" % (results[0])
        print2 = tk.Label(root3, text=val)
        print2.grid(row=1, column=0, padx=10, pady=5)
        val = "您要查询的书的作者为：%s" % (results[1])
        print3 = tk.Label(root3, text=val)
        print3.grid(row=2, column=0, padx=10, pady=5)
        val = "您要查询的书的作者为：%s" % (results[2])
        print4 = tk.Label(root3, text=val)
        print4.grid(row=3, column=0, padx=10, pady=5)
        val = "您要查询的书名为：%s" % (results[3])
        print5 = tk.Label(root3, text=val)
        print5.grid(row=4, column=0, padx=10, pady=5)
        val = "您要查询的书的出版日期为：%s" % (results[4])
        print6 = tk.Label(root3, text=val)
        print6.grid(row=5, column=0, padx=10, pady=5)
    else:
        msg._show(title='错误', message='没有查到您要查询的记录')
    db.close()

def borrow_end():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    id = input_id.get()
    name = input8.get()
    sql = "SELECT bid,num FROM book WHERE bname='%s'" % (name)
    cursor.execute(sql)
    results = cursor.fetchone()
    if results[1] > 0:
        sql = "INSERT INTO borrow(rid,bid,btime) VALUES(%s,%s,CURDATE())" % (id, results[0])
        try:
            cursor.execute(sql)
            db.commit()
            msg._show(title="成功",message="借阅成功！")
        except:
            msg._show(title="系统故障",message="借阅失败！")
    else:
        msg._show(title="库存量不足",message="对不起，您要借阅的图书库存不足！")
    db.close()

def return_end():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    id = input_id.get()
    name = input9.get()
    sql = "SELECT bid FROM book WHERE bname = '%s'" % (name)
    cursor.execute(sql)
    results = cursor.fetchone()
    sql = "SELECT lid FROM borrow WHERE bid=%s AND rid=%s" % (results[0], id)
    cursor.execute(sql)
    result = cursor.fetchone()
    sql = "UPDATE borrow SET rtime=CURDATE()WHERE lid= %s"%(result[0])
    try:
        cursor.execute(sql)
        db.commit()
        msg._show(title='成功',message='还书成功')
    except:
        msg._show(title='系统故障',message='还失败')
    db.close()

def donate_end():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    id = input_id.get()
    name = input10.get()
    amount = input11.get()
    write = input12.get()
    tim= input13.get()
    sql = "SELECT num FROM book WHERE bname='%s'" % (name)
    cursor.execute(sql)
    results = cursor.fetchone()
    if results:
        sql = "UPDATE book SET num=num+%s WHERE bname='%s'" % (amount, name)
        try:
            cursor.execute(sql)
            db.commit()
            msg._show(title="成功",message="捐书成功！谢谢您")
        except:
            msg._show(title="系统故障",message="捐书失败")
            db.rollback()
    else:
        sql = "SELECT MAX(bid) FROM book"
        cursor.execute(sql)
        results = cursor.fetchone()
        results[0] = results[0] + 1
        sql = "INSERT INTO book VALUES (%s,'%s',%s,'%s','%s')" % (results, write, amount, name, tim)
        try:
            cursor.execute(sql)
            db.commit()
            msg._show(title="成功", message="捐书成功！谢谢您")
        except:
            msg._show(title="错误", message="输入信息有误")
            db.rollback()
    db.close()

def book_select():
    v1=tk.StringVar()
    global root2
    root2=tk.Tk()
    root2.title("查询图书")
    global input_book
    labe1 = tk.Label(root2, text="请输入您要查询的图书名：", font=36).grid(row=0, column=0)
    input_book = tk.Entry(root2,textvariable=v1)
    input_book.grid(row=0,column=1)
    tk.Button(root2, text='确认', width=10, command=check_book).grid(row=1, column=0, sticky=tk.W, padx=10, pady=5)
    tk.Button(root2, text='取消', width=10, command=exit_login3).grid(row=1, column=1, sticky=tk.E, padx=10, pady=5)

def book_borrow():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    id=input_id.get()
    sql = "SELECT bleft FROM reader WHERE rid = %s" % (id)
    cursor.execute(sql)
    result = cursor.fetchone()
    v_borrow=tk.StringVar()
    if result[0] == 0:
        msg._show(title="错误",message="你已达最大借阅量，借阅失败")
    global root2
    root2 = tk.Tk()
    root2 .title("借阅")
    global input8
    labe1 = tk.Label(root2, text="请输入您要借阅的图书名：", font=36).grid(row=0, column=0)
    input8 = tk.Entry(root2, textvariable=v_borrow)
    input8.grid(row=1,column=0)
    tk.Button(root2, text='确认', width=10, command=borrow_end).grid(row=2, column=0, sticky=tk.W, padx=10, pady=5)
    tk.Button(root2, text='取消', width=10, command=exit_login3).grid(row=2, column=1, sticky=tk.E, padx=10, pady=5)
    db.close()

def return_book():
    global root2
    root2 = tk.Tk()
    root2.title("还书")
    v1=tk.StringVar()
    global input9
    labe1 = tk.Label(root2, text="请输入您要还的图书名：", font=36).grid(row=0, column=0)
    input9 = tk.Entry(root2, textvariable=v1)
    input9.grid(row=1, column=0)
    tk.Button(root2, text='确认', width=10, command=return_end).grid(row=2, column=0, sticky=tk.W, padx=10, pady=5)
    tk.Button(root2, text='取消', width=10, command=exit_login3).grid(row=2, column=1, sticky=tk.E, padx=10, pady=5)

def donate_book():
    global root2
    root2 = tk.Tk()
    root2.title("捐书")
    v1 = tk.StringVar()
    v2 = tk.StringVar()
    v3 = tk.StringVar()
    v4 = tk.StringVar()
    global input10,input11,input12,input13
    labe1 = tk.Label(root2, text="请输入您要捐赠的图书名：", font=36).grid(row=0, column=0)
    labe12 = tk.Label(root2, text="请输入您要捐赠的图书的数量：", font=36).grid(row=1, column=0)
    labe13 = tk.Label(root2, text="请输入您要捐赠的作者：", font=36).grid(row=2, column=0)
    labe4 = tk.Label(root2, text="请输入您要捐赠的图书的出版时间：", font=36).grid(row=3, column=0)
    input10 = tk.Entry(root2, textvariable=v1)
    input10.grid(row=0, column=1)
    input11 = tk.Entry(root2, textvariable=v2)
    input11.grid(row=1, column=1)
    input12 = tk.Entry(root2, textvariable=v3)
    input12.grid(row=2, column=1)
    input13 = tk.Entry(root2, textvariable=v4)
    input13.grid(row=3, column=1)
    tk.Button(root2, text='确认', width=10, command=donate_end).grid(row=4, column=0, sticky=tk.W, padx=10, pady=5)
    tk.Button(root2, text='取消', width=10, command=exit_login3).grid(row=4, column=1, sticky=tk.E, padx=10, pady=5)


def success_tip(id):
    root1 = tk.Tk()
    root1.title('YTU图书管理系统')
    labe1 = tk.Label(root1, text="欢迎来到YTU图书管理系统，请选择您要进行的操作：", font=36).grid(row=0, column=0)
    tk.Button(root1, text='查询图书',  command=book_select).grid(row=1, column=0)
    tk.Button(root1, text='借阅图书',  command=book_borrow).grid(row=2, column=0)
    tk.Button(root1, text='归还图书',  command=return_book).grid(row=3,  column=0)
    tk.Button(root1, text='捐赠图书',  command=donate_book).grid(row=4, column=0)
    tk.Button(root1, text='退出', command=resiger).grid(row=5, column=0)
    root1.mainloop()
def exit_login2():
    root1.destroy()

def login_check():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    id=input_id.get()
    name=input2.get()
    sql = "SELECT rname FROM reader WHERE rid='%s'" % (id)
    cursor.execute(sql)
    results = cursor.fetchone()
    if results:
            if name == results[0]:
                success_tip(id)
            else:
               msg._show(title='错误！',message='账号密码输入错误！')
    else:
        msg._show(title='错误！',message='您输入的用户不存在！')
    db.close()

def auto_login():
    global root1
    root1 = tk.Tk()
    v1 = tk.StringVar()
    v2 = tk.StringVar()
    root1.title("登入")
    labe1=tk.Label(root1,text="学号：",font=36).grid(row=0, column=0)
    label2=tk.Label(root1,text="密码：",font=36).grid(row=1,column=0)
    global input_id,input2
    input_id = tk.Entry(root1, textvariable=v1)
    input_id.grid(row=0, column=1, padx=10, pady=5)
    input2 = tk.Entry(root1, textvariable=v2, show='*')
    input2.grid(row=1, column=1, padx=10, pady=5)
    tk.Button(root1, text='登录', width=10, command=login_check).grid(row=3, column=0, sticky=tk.W, padx=10, pady=5)
    tk.Button(root1, text='退出', width=10, command=exit_login2).grid(row=3, column=1, sticky=tk.E, padx=10, pady=5)

def exit_login():
    root.destroy()

def exit_login3():
    root2.destroy()

def resiger_end():
    db = pymysql.connect("localhost", "root", "*****", "library")
    cursor = db.cursor()
    rid = input1.get()
    name = input2.get()
    sex = input3.get()
    clas = input4.get()
    sql = "INSERT INTO reader VALUES(%s,'%s','%s','%s',10)" % (rid, name, sex, clas)
    try:
        cursor.execute(sql)
        db.commit()
        msg._show(title='成功', message='注册成功！')
    except:
        msg._show(title='错误', message='注册失败！')
    db.close()

def resiger():
    root2 = tk.Tk()
    root2.title("注册")
    labe1  = tk.Label(root2, text="学号：", font=36).grid(row=0,column=0)
    label2 = tk.Label(root2, text="密码：", font=36).grid(row=1,column=0)
    label3 = tk.Label(root2,text="性别：",font=36).grid(row=2,column=0)
    label4 = tk.Label(root2,text="班级：",font=36).grid(row=3,column=0)
    v1 = tk.StringVar()
    v2 = tk.StringVar()
    v3 = tk.StringVar()
    v4 = tk.StringVar()
    global input1,input2,input3,input4
    input1 = tk.Entry(root2, textvariable=v1)
    input1.grid(row=0, column=1, padx=10, pady=5)
    input2 = tk.Entry(root2, textvariable=v2, show='*')
    input2.grid(row=1, column=1, padx=10, pady=5)
    input3 = tk.Entry(root2, textvariable=v3)
    input3.grid(row=2, column=1, padx=10, pady=5)
    input4 = tk.Entry(root2, textvariable=v4,)
    input4.grid(row=3, column=1, padx=10, pady=5)
    tk.Button(root2, text='确认', width=10, command=resiger_end).grid(row=4, column=0, sticky=tk.W, padx=10, pady=5)
    tk.Button(root2, text='取消', width=10, command=exit_login3).grid(row=4, column=1, sticky=tk.E, padx=10, pady=5)

def frame():
    global root
    root = tk.Tk()
    root.title('YTU图书管理系统登录')
    root.geometry("500x500")
    #photo=tk.PhotoImage(file=BACK_PATH)
    #theLabel = tk.Label(root,image = photo,compound = tk.CENTER,fg = "white").pack(fill="both",expand=1)
    tk.Button(root, text='登入', width=70,height=9, command=auto_login).grid(row=0, column=0,)
    tk.Button(root, text='注册', width=70,height=9, command=resiger).grid(row=1, column=0)
    tk.Button(root, text='退出',width=70,height=9,command=exit_login).grid(row=2, column=0)
    root.mainloop()


if __name__ == '__main__':
    frame()