diff --git a/README.md b/README.md
index 8bc2d26..2716677 100644
--- a/README.md
+++ b/README.md
@@ -1,876 +1,25 @@
-import tkinter
-import xlrd
-import xlwt
-import os
-from tkinter import *
-from xlutils import copy
-from tkinter import messagebox
-import datedays
-#创建窗口
-def createwin():
-    window=Tk()
-    window.title('书籍管理系统')
-    window.geometry('350x800')
-    button1 = tkinter.Button(window, text='退出', command=lambda: window.destroy(), width=7, height=2)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(window, width=22, height=1, command=lambda: createentry(), text='添加书籍');
-    button2.place(x=100, y=200)
-    button3 = tkinter.Button(window, width=22, height=1, command=lambda: addUser(), text='添加用户');
-    button3.place(x=100, y=250)
-    button4 = tkinter.Button(window, width=22, height=1, command=lambda: modifybook(), text='修改书籍');
-    button4.place(x=100, y=300)
-    button5 = tkinter.Button(window, width=22, height=1, command=lambda: modifyuser(), text='修改用户');
-    button5.place(x=100, y=350)
-    button6 = tkinter.Button(window, width=22, height=1, command=lambda: lookbook(), text='查看书籍信息');
-    button6.place(x=100, y=100)
-    button7 = tkinter.Button(window, width=22, height=1, command=lambda: rookbook(), text='查看用户信息');
-    button7.place(x=100, y=150)
-    button8 = tkinter.Button(window, width=22, height=1, command=lambda: allbook(), text='超时未还书借书者信息');
-    button8.place(x=100, y=400)
-    button9 = tkinter.Button(window, width=22, height=1, command=lambda: searchbook(), text='查询书籍信息');
-    button9.place(x=100, y=450)
-    button10 = tkinter.Button(window, width=22, height=1, command=lambda: checkhistory(), text='查询用户信息');
-    button10.place(x=100, y=500)
-    button11 = tkinter.Button(window, width=22, height=1, command=lambda: borrowbook(), text='借书');
-    button11.place(x=100, y=550)
-    button12 = tkinter.Button(window, width=22, height=1, command=lambda: returnbook(), text='还书');
-    button12.place(x=100, y=600)
-    button13 = tkinter.Button(window, width=22, height=1, command=lambda: deletebook(), text='删除书籍');
-    button13.place(x=100, y=650)
-    button14 = tkinter.Button(window, width=22, height=1, command=lambda: deleteuser(), text='删除用户');
-    button14.place(x=100, y=700)
-    return window
-
-
-
-#查看书籍信息
-def lookbook():
-    lookbook=Tk()
-    lookbook.title('书籍信息')
-    lookbook.geometry('1600x500')
-    roll=tkinter.Scrollbar(lookbook)
-    roll.pack(side=tkinter.RIGHT,fill=tkinter.Y)
-    text_input=tkinter.Text(lookbook,width=800,height=500)
-    text_input.insert('insert',getvar1())
-    text_input.pack(expand=tkinter.YES,fill=tkinter.BOTH)
-    text_input.config(yscrollcommand=roll.set)
-    roll.config(command=text_input.yview)
-
-#获取书籍信息表格中的内容
-def getvar1():
-    xls=xlrd.open_workbook('书籍信息.xls')
-    sheet=xls.sheet_by_index(0)
-    table = xls.sheets()[0]
-    n=table.nrows
-    listindes=""
-    for i in range(0,n):
-        for j in range(0,7):
-            listindes=listindes+str(sheet.cell_value(i,j))+"\t\t\t\t"
-        listindes=listindes+"\n"
-    return listindes
-
-#查看借书者信息
-def rookbook():
-    rookbook=Tk()
-    rookbook.title('用户信息')
-    rookbook.geometry('700x500')
-    roll=tkinter.Scrollbar(rookbook)
-    roll.pack(side=tkinter.RIGHT,fill=tkinter.Y)
-    text_input=tkinter.Text(rookbook,width=800,height=500)
-    text_input.insert('insert',showUsers())
-    text_input.pack(expand=tkinter.YES,fill=tkinter.BOTH)
-    text_input.config(yscrollcommand=roll.set)
-    roll.config(command=text_input.yview)
-
-
-
-# 显示所有借书者信息
-def showUsers():
-    # 获取所有用户信息Excel文件的文件名
-    path = '用户信息\\'
-    files = os.listdir(path)
-    users = []
-    for file in files:
-        if file.endswith('.xls'):
-            users.append(file)
-    st = "姓名\t\t\t性别\t\t\t年龄\t\t\t借书账号\t\t\t"
-    for user in users:
-        s = path + user
-        book = xlrd.open_workbook(s)
-        sheet = book.sheet_by_index(0)
-        st=st+"\n"
-        for j in range(sheet.ncols-5):
-            st = st+str(sheet.cell_value(1, j)) + "\t\t\t"
-    return st
-
-# 统计超过期限未还书的借书者并输出借书者信息
-def overdueUsers():
-    date = datedays.getnow()
-    # 获取所有用户信息Excel文件的文件名
-    path = '用户信息\\'
-    files = os.listdir(path)
-    users = []
-    for file in files:
-        if file.endswith('.xls'):
-            users.append(file)
-    st = "姓名\t\t\t性别\t\t\t年龄\t\t\t借书账号\t\t\t借书日期\t\t\t书籍编号\t\t\t借书书名\t\t\t应还书日期\t\t\t是否已还书"
-    st = st + "\n"
-    for user in users:
-        s = path + user
-        book = xlrd.open_workbook(s)
-        sheet = book.sheet_by_index(0)
-        t=0
-        for i in range(1, sheet.nrows):
-            return_date = str(sheet.cell_value(i, 7))
-            status = sheet.cell_value(i, 8)
-            if status == '否' and return_date < date:
-                if t==0:
-                    t=1
-                    for k in range(0,4):
-                        st=st+str(sheet.cell_value(1,k))+"\t\t\t"
-                    for k in range(4,9):
-                        st=st+str(sheet.cell_value(i,k))+"\t\t\t"
-                else:
-                    for j in range(sheet.ncols):
-                        st = st + str(sheet.cell_value(i, j)) + "\t\t\t"
-                st = st + "\n"
-    return st
-
-#输出超过期限未还书的借书者信息
-def allbook():
-    allbook=Tk()
-    allbook.title('超时未还书借书者信息')
-    allbook.geometry('1600x500')
-    roll=tkinter.Scrollbar(allbook)
-    roll.pack(side=tkinter.RIGHT,fill=tkinter.Y)
-    text_input=tkinter.Text(allbook,width=1000,height=500)
-    text_input.insert('insert',overdueUsers())
-    text_input.pack(expand=tkinter.YES,fill=tkinter.BOTH)
-    text_input.config(yscrollcommand=roll.set)
-    roll.config(command=text_input.yview)
-
-
-
-#创建新用户表格，表格以借书账号命名，添加用户信息
-def addUser():
-    #创建用于输入添加的用户的信息的窗口
-    addusers = Tk()
-    addusers.title('添加用户')
-    addusers.geometry('275x250')
-    button1 = tkinter.Button(addusers, text='退出', command=lambda: addusers.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(addusers, width=8, height=1,command=lambda: getentry2(addusers, entry1, entry2, entry3, entry4), text='确认');
-    button2.place(x=100, y=175)
-    text1 = tkinter.Label(addusers, bd=4, fg='black', text='姓名：')
-    text1.place(x=20, y=45)
-    text2 = tkinter.Label(addusers, bd=4, fg='black', text='性别：')
-    text2.place(x=20, y=70)
-    text3 = tkinter.Label(addusers, bd=4, fg='black', text='年龄：')
-    text3.place(x=20, y=95)
-    text4 = tkinter.Label(addusers, bd=4, fg='black', text='借书账号：')
-    text4.place(x=20, y=120)
-    entry1 = tkinter.Entry(addusers, width=20, show='')
-    entry1.place(x=100, y=50)
-    entry2 = tkinter.Entry(addusers, width=20, show='')
-    entry2.place(x=100, y=75)
-    entry3 = tkinter.Entry(addusers, width=20, show='')
-    entry3.place(x=100, y=100)
-    entry4 = tkinter.Entry(addusers, width=20, show='')
-    entry4.place(x=100, y=125)
-def getentry2(addusers, entry1, entry2, entry3, entry4):
-    #判断输入是否完整，避免保存错误信息
-    if entry1.get()=="" or entry2.get()=="" or entry3.get()=="" or entry4.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入完整信息！')
-        return
-    data = []
-    data.append(str(entry1.get()))
-    data.append(str(entry2.get()))
-    data.append(str(entry3.get()))
-    data.append(str(entry4.get()))
-    for i in range(0,5):
-        data.append("无")
-    s = '用户信息' + '\\' + data[3] + '.xls'
-    #判断是否已有用户，避免重复添加用户造成报错
-    if not os.path.exists(s):
-        book = xlwt.Workbook(encoding='utf-8', style_compression=0)
-        sheet = book.add_sheet('用户管理系统', cell_overwrite_ok=True)
-        col = ('姓名', '性别', '年龄', '借书账号', '借书日期', '书籍编号', '借书书名', '应还书日期', '是否已还书')
-        for i in range(0, 9):
-            sheet.write(0, i, col[i])
-        book.save(s)
-        xls = xlrd.open_workbook(s)
-        wbook = copy.copy(xls)
-        wsheet = wbook.get_sheet(0)
-        table = xls.sheets()[0]
-        n = table.nrows
-        for i in range(len(data)):
-            wsheet.write(n, i, data[i])
-        wbook.save(s)
-        tkinter.messagebox.showinfo('提示', '添加成功！')
-    else:
-        tkinter.messagebox.showerror('错误', '添加失败，用户已存在！')
-    addusers.destroy()
-
-#添加书籍
-def getentry(addwin,entry1,entry2,entry3,entry4,entry5,entry6,entry7):
-    #判断输入框是否输入完整，防止存到错误信息
-    if entry1.get()=="" or entry2.get()=="" or entry3.get()=="" or entry4.get()=="" or entry5.get()=="" or entry6.get()=="" or entry7.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入完整信息！')
-        return
-    xls = xlrd.open_workbook('书籍信息.xls')
-    wbook = copy.copy(xls)
-    wsheet = wbook.get_sheet(0)
-    sheet = xls.sheet_by_index(0)
-    table = xls.sheets()[0]
-    n = table.nrows
-    t=0
-    #避免书籍信息重复添加
-    for i in range(0, n):
-        if entry5.get()==sheet.cell_value(i,4):
-            t=1
-            tkinter.messagebox.showerror('错误', '添加失败，已有书籍信息！')
-            break
-    #添加书籍信息，写入表格
-    if t==0:
-        data=[]
-        data.append(str(entry1.get()))
-        data.append(str(entry2.get()))
-        data.append(str(entry3.get()))
-        data.append(str(entry4.get()))
-        data.append(str(entry5.get()))
-        data.append(str(entry6.get()))
-        data.append(str(entry7.get()))
-        n = table.nrows
-        for i in range(len(data)):
-            wsheet.write(n, i, data[i])
-        wbook.save('书籍信息.xls')
-        tkinter.messagebox.showinfo('提示', '添加成功！')
-    #关闭窗口
-    addwin.destroy()
-def createentry():
-    #创建输入需要添加的书籍的信息的窗口
-    addwin=Tk()
-    addwin.title('添加书籍')
-    addwin.geometry('275x300')
-    button1 = tkinter.Button(addwin, text='退出', command=lambda: addwin.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(addwin, width=8, height=1, command=lambda:getentry(addwin,entry1,entry2,entry3,entry4,entry5,entry6,entry7) , text='确认');
-    button2.place(x=100, y=250)
-    text1 = tkinter.Label(addwin, bd=4, fg='black', text='书名：')
-    text1.place(x=20,y=45)
-    text2 = tkinter.Label(addwin, bd=4, fg='black', text='作者：')
-    text2.place(x=20, y=70)
-    text3 = tkinter.Label(addwin, bd=4, fg='black', text='出版社：')
-    text3.place(x=20, y=95)
-    text4 = tkinter.Label(addwin, bd=4, fg='black', text='出版日期：')
-    text4.place(x=20, y=120)
-    text5 = tkinter.Label(addwin, bd=4, fg='black', text='书籍编号：')
-    text5.place(x=20, y=145)
-    text6 = tkinter.Label(addwin, bd=4, fg='black', text='书籍位置：')
-    text6.place(x=20, y=170)
-    text7 = tkinter.Label(addwin, bd=4, fg='black', text='库存量：')
-    text7.place(x=20, y=195)
-    entry1 = tkinter.Entry(addwin, width=20, show='')
-    entry1.place(x=100, y=50)
-    entry2 = tkinter.Entry(addwin, width=20, show='')
-    entry2.place(x=100, y=75)
-    entry3 = tkinter.Entry(addwin, width=20, show='')
-    entry3.place(x=100, y=100)
-    entry4 = tkinter.Entry(addwin, width=20, show='')
-    entry4.place(x=100, y=125)
-    entry5 = tkinter.Entry(addwin, width=20, show='')
-    entry5.place(x=100, y=150)
-    entry6 = tkinter.Entry(addwin, width=20, show='')
-    entry6.place(x=100, y=175)
-    entry7 = tkinter.Entry(addwin, width=20, show='')
-    entry7.place(x=100, y=200)
-
-
-
-
-#修改书籍信息
-def modifybook():
-    modifywin = Tk()
-    modifywin.title('修改书籍信息')
-    modifywin.geometry('275x200')
-    button1 = tkinter.Button(modifywin, text='退出', command=lambda: modifywin.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    text1 = tkinter.Label(modifywin, bd=4, fg='black', text='书籍编号：')
-    text1.place(x=20, y=45)
-    entry1 = tkinter.Entry(modifywin, width=20, show='')
-    entry1.place(x=100, y=50)
-    button2 = tkinter.Button(modifywin, width=8, height=1, command=lambda: getentry_mod(modifywin,entry1), text='确认');
-    button2.place(x=100, y=150)
-def getentry_mod(modify,entry1):
-    if entry1.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入书籍编号！')
-        return
-    bookid=entry1.get()
-    modify.destroy()
-    # 打开Excel文件
-    xls = xlrd.open_workbook('书籍信息.xls')
-    # 复制一份Excel文件以便修改
-    wbook = copy.copy(xls)
-    # 获取工作表
-    wsheet = wbook.get_sheet(0)
-    table = xls.sheets()[0]
-    n = table.nrows
-    # 查找对应书籍编号
-    for i in range(1, n):
-        if table.cell(i, 4).value == bookid:
-            # 创建修改书籍信息窗口
-            modifywin = Tk()
-            modifywin.title('修改书籍信息')
-            modifywin.geometry('275x250')
-            # 添加标签和输入框
-            tkinter.Label(modifywin, bd=4, fg='black', text='书名：').place(x=20, y=25)
-            entry1 = tkinter.Entry(modifywin, width=20, justify='right')
-            entry1.insert(0, table.cell(i, 0).value)
-            entry1.place(x=100, y=25)
-            tkinter.Label(modifywin, bd=4, fg='black', text='作者：').place(x=20, y=50)
-            entry2 = tkinter.Entry(modifywin, width=20, justify='right')
-            entry2.insert(0, table.cell(i, 1).value)
-            entry2.place(x=100, y=50)
-            tkinter.Label(modifywin, bd=4, fg='black', text='出版社：').place(x=20, y=75)
-            entry3 = tkinter.Entry(modifywin, width=20, justify='right')
-            entry3.insert(0, table.cell(i, 2).value)
-            entry3.place(x=100, y=75)
-            tkinter.Label(modifywin, bd=4, fg='black', text='出版日期：').place(x=20, y=100)
-            entry4 = tkinter.Entry(modifywin, width=20, justify='right')
-            entry4.insert(0, table.cell(i, 3).value)
-            entry4.place(x=100, y=100)
-            tkinter.Label(modifywin, bd=4, fg='black', text='书籍位置：').place(x=20, y=125)
-            entry5 = tkinter.Entry(modifywin, width=20, justify='right')
-            entry5.insert(0, table.cell(i, 5).value)
-            entry5.place(x=100, y=125)
-            tkinter.Label(modifywin, bd=4, fg='black', text='库存量：').place(x=20, y=150)
-            entry6 = tkinter.Entry(modifywin, width=20, justify='right')
-            entry6.insert(0, table.cell(i, 6).value)
-            entry6.place(x=100, y=150)
-            # 添加确认修改按钮和退出按钮
-            tkinter.Button(modifywin, width=8, height=1, text='确认',command=lambda: getentry_mod_finish(bookid, entry1.get(), entry2.get(), entry3.get(),entry4.get(), entry5.get(), entry6.get(),modifywin)).place(x=100, y=200)
-            tkinter.Button(modifywin, text='退出', command=modifywin.destroy, width=4, height=1).place(relx=1, rely=1,anchor='se')
-            return
-            # 如果书籍编号不存在，弹出提示框
-    tkinter.messagebox.showerror('错误', '该书籍编号不存在！')
-#获取修改书籍信息的窗口的内容并对相应的行进行修改
-def getentry_mod_finish(bookid,entry1,entry2,entry3,entry4,entry5,entry6,modifywin):
-    if entry1=="" or entry2=="" or entry3=="" or entry4=="" or entry5=="" or entry6=="":
-        tkinter.messagebox.showerror('错误', '请输入完整信息！')
-        return
-    xls = xlrd.open_workbook('书籍信息.xls')
-    wbook = copy.copy(xls)
-    wsheet = wbook.get_sheet(0)
-    table = xls.sheets()[0]
-    n = table.nrows
-    for i in range(1, n):
-        if table.cell(i, 4).value == bookid:
-            wsheet.write(i, 0, str(entry1))
-            wsheet.write(i, 1, str(entry2))
-            wsheet.write(i, 2, str(entry3))
-            wsheet.write(i, 3, str(entry4))
-            wsheet.write(i, 5, str(entry5))
-            wsheet.write(i, 6, str(entry6))
-    wbook.save('书籍信息.xls')
-    tkinter.messagebox.showinfo('提示', '修改成功！')
-    modifywin.destroy()
-    return
-
-#修改用户信息
-def modifyuser():
-    modify = Tk()
-    modify.title('修改用户信息')
-    modify.geometry('275x200')
-    text1 = tkinter.Label(modify, bd=4, fg='black', text='借书账号：')
-    text1.place(x=20, y=45)
-    entry = tkinter.Entry(modify, width=20, show='')
-    entry.place(x=100, y=50)
-    button1 = tkinter.Button(modify, text='退出', command=lambda: modify.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(modify, width=8, height=1, command=lambda: getentry3(modify, entry), text='确认');
-    button2.place(x=100, y=100)
-#创建窗口，显示用户信息并进行修改
-def getentry3(modify,entry):
-    if entry.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入用户账号！')
-        return
-    account=entry.get()
-    path = '用户信息' + '\\' + account + '.xls'
-    try:
-        xls = xlrd.open_workbook(path)
-    except:
-        text = tkinter.Label(modify, bd=4, fg='red', text='用户不存在！')
-        text.place(x=90, y=20)
-        return
-    sheet = xls.sheet_by_index(0)
-    data = []
-    for j in range(0, 4):
-        data.append(str(sheet.cell_value(1, j)))
-
-    modify2 = Tk()
-    modify2.title('修改用户信息')
-    modify2.geometry('275x200')
-
-    button1 = tkinter.Button(modify2, text='退出', command=lambda: modify2.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(modify2, width=8, height=1,
-                             command=lambda: updateuser(modify2, account, entry1, entry2, entry3), text='确认修改');
-    button2.place(x=100, y=150)
-    text1 = tkinter.Label(modify2, bd=4, fg='black', text='姓名：')
-    text1.place(x=20, y=45)
-    text2 = tkinter.Label(modify2, bd=4, fg='black', text='性别：')
-    text2.place(x=20, y=70)
-    text3 = tkinter.Label(modify2, bd=4, fg='black', text='年龄：')
-    text3.place(x=20, y=95)
-
-    entry1 = tkinter.Entry(modify2, width=20, show='')
-    entry1.insert(0, data[0])
-    entry1.place(x=100, y=50)
-    entry2 = tkinter.Entry(modify2, width=20, show='')
-    entry2.insert(0, data[1])
-    entry2.place(x=100, y=75)
-    entry3 = tkinter.Entry(modify2, width=20, show='')
-    entry3.insert(0, data[2])
-    entry3.place(x=100, y=100)
-    modify.destroy()
-
-#更新用户信息表格中的指定用户的信息
-def updateuser(modify2, account, entry1,entry2,entry3):
-    if entry1.get()=="" or entry2.get()=="" or entry3.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入完整信息！')
-        return
-    data = []
-    data.append(entry1.get())
-    data.append(entry2.get())
-    data.append(entry3.get())
-    s = '用户信息' + '\\' + account + '.xls'
-    xls = xlrd.open_workbook(s)
-    wbook = copy.copy(xls)
-    wsheet = wbook.get_sheet(0)
-    table = xls.sheets()[0]
-    for i in range(len(data)):
-        wsheet.write(1,i,data[i])
-    wbook.save(s)
-    tkinter.messagebox.showinfo('提示', '修改成功！')
-    modify2.destroy()
-
-
-
-#查询书籍信息
-def searchbook():
-    search = Tk()
-    search.title('查询书籍信息')
-    search.geometry('275x200')
-    button1 = tkinter.Button(search, text='退出', command=lambda: search.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    text1 = tkinter.Label(search, bd=4, fg='black', text='书籍编号：')
-    text1.place(x=20, y=45)
-    entry1 = tkinter.Entry(search, width=20, show='')
-    entry1.place(x=100, y=50)
-    button2 = tkinter.Button(search, width=8, height=1, command=lambda: getentry_search(entry1.get()), text='确认');
-    button2.place(x=100, y=150)
-def getentry_search(bookid):
-    if bookid=="":
-        tkinter.messagebox.showerror('错误', '请输入要查询的书籍编号！')
-        return
-    # 打开Excel文件
-    xls = xlrd.open_workbook('书籍信息.xls')
-    table = xls.sheets()[0]
-    n = table.nrows
-    # 查找对应书籍编号
-    for i in range(1, n):
-        if table.cell(i, 4).value == bookid:
-            # 创建查询书籍信息窗口
-            seaech = Tk()
-            seaech.title('查询书籍信息')
-            seaech.geometry('275x300')
-            # 添加标签和输入框
-            tkinter.Label(seaech, bd=4, fg='black', text='书名：').place(x=20, y=25)
-            entry1 = tkinter.Entry(seaech, width=20, justify='right')
-            entry1.insert(0, table.cell(i, 0).value)
-            entry1.place(x=100, y=25)
-            tkinter.Label(seaech, bd=4, fg='black', text='作者：').place(x=20, y=50)
-            entry2 = tkinter.Entry(seaech, width=20, justify='right')
-            entry2.insert(0, table.cell(i, 1).value)
-            entry2.place(x=100, y=50)
-            tkinter.Label(seaech, bd=4, fg='black', text='出版社：').place(x=20, y=75)
-            entry3 = tkinter.Entry(seaech, width=20, justify='right')
-            entry3.insert(0, table.cell(i, 2).value)
-            entry3.place(x=100, y=75)
-            tkinter.Label(seaech, bd=4, fg='black', text='出版日期：').place(x=20, y=100)
-            entry4 = tkinter.Entry(seaech, width=20, justify='right')
-            entry4.insert(0, table.cell(i, 3).value)
-            entry4.place(x=100, y=100)
-            tkinter.Label(seaech, bd=4, fg='black', text='书籍位置：').place(x=20, y=125)
-            entry5 = tkinter.Entry(seaech, width=20, justify='right')
-            entry5.insert(0, table.cell(i, 5).value)
-            entry5.place(x=100, y=125)
-            tkinter.Label(seaech, bd=4, fg='black', text='库存量：').place(x=20, y=150)
-            entry6 = tkinter.Entry(seaech, width=20, justify='right')
-            entry6.insert(0, table.cell(i, 6).value)
-            entry6.place(x=100, y=150)
-            # 添加退出按钮
-            tkinter.Button(seaech, text='退出', command=seaech.destroy, width=4, height=1).place(relx=1, rely=1,
-                                                                                                       anchor='se')
-            return
-            # 如果书籍编号不存在，弹出提示框
-    tkinter.messagebox.showerror('错误', '该书籍编号不存在！')
-
-#查阅借阅历史
-def checkhistory():
-    check = Tk()
-    check.title('查询用户信息')
-    check.geometry('275x200')
-    text1 = tkinter.Label(check, bd=4, fg='black', text='借书账号：')
-    text1.place(x=20, y=45)
-    entry1 = tkinter.Entry(check, width=20, show='')
-    entry1.place(x=100, y=50)
-    button1 = tkinter.Button(check, text='退出', command=lambda: check.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(check, width=8, height=1, command=lambda: getentry_check(entry1.get()), text='确认');
-    button2.place(x=100, y=100)
-def getentry_check(account):
-    if account=="":
-        tkinter.messagebox.showerror('错误', '请输入要查询的用户账号！')
-        return
-    path = '用户信息' + '\\' + account + '.xls'
-    try:
-        xls = xlrd.open_workbook(path)
-    except:
-        tkinter.messagebox.showerror('错误', '该用户不存在！')
-        return
-    sheet = xls.sheet_by_index(0)
-    n = sheet.nrows
-    data=[]
-    ss=""
-    for j in range(0, 9):
-        ss = ss + str(sheet.cell_value(0, j)) + "\t\t\t"
-    ss=ss+"\n"
-    for i in range(1, n):
-        data1=[]
-        for j in range(sheet.ncols):
-            data1.append(str(sheet.cell_value(i,j)))
-        data.append(data1)
-    for i in range(0,4):
-        ss=ss+sheet.cell_value(1,i)+"\t\t\t"
-    data.sort(key=lambda x:x[8])
-    t=0
-    for value in data:
-        if t==1:
-            for i in range(0,4):
-                ss=ss+""+"\t\t\t"
-            for i in range(4,len(value)):
-                ss=ss+str(value[i])+"\t\t\t"
-        if t==0:
-            for i in range(4,len(value)):
-                ss=ss+str(value[i])+"\t\t\t"
-                t=1
-        ss=ss+"\n"
-    check = Tk()
-    check.title('查询用户信息')
-    check.geometry('1600x500')
-    roll = tkinter.Scrollbar(check)
-    roll.pack(side=tkinter.RIGHT, fill=tkinter.Y)
-    text_input = tkinter.Text(check, width=800, height=500)
-    text_input.insert('insert', ss)
-    text_input.pack(expand=tkinter.YES, fill=tkinter.BOTH)
-    text_input.config(yscrollcommand=roll.set)
-    roll.config(command=text_input.yview)
-    button1 = tkinter.Button(check, text='退出', command=lambda: check.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-
-#删除书籍信息
-def deletebook():
-    delete = Tk()
-    delete .title('删除书籍信息')
-    delete .geometry('275x200')
-    button1 = tkinter.Button(delete , text='退出', command=lambda: delete.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    text1 = tkinter.Label(delete, bd=4, fg='black', text='书籍编号：')
-    text1.place(x=20, y=45)
-    entry1 = tkinter.Entry(delete, width=20, show='')
-    entry1.place(x=100, y=50)
-    button2 = tkinter.Button(delete, width=8, height=1, command=lambda: getentry_delete(entry1), text='确认');
-    button2.place(x=100, y=150)
-def getentry_delete(entry1):
-    bookid=entry1.get()
-    if bookid=="":
-        tkinter.messagebox.showerror('错误', '请输入要删除的书籍编号！')
-        return
-    # 打开Excel文件
-    xls = xlrd.open_workbook('书籍信息.xls')
-    sheet = xls.sheet_by_index(0)
-    table = xls.sheets()[0]
-    n = table.nrows
-    data=[]
-    for i in range(1,n):
-        if sheet.cell_value(i,4) == bookid:
-            for j in range(i+1,n):
-                for u in range(0,7):
-                    data.append(str(sheet.cell_value(j,u)))
-            os.remove('书籍信息.xls')
-            if not os.path.exists('书籍信息.xls'):
-                book = xlwt.Workbook(encoding='utf-8', style_compression=0)
-                sheet = book.add_sheet('书籍管理系统', cell_overwrite_ok=True)
-                col = ('书名', '作者', '出版社', '出版日期', '书籍编号', '书籍位置', '库存量')
-                for i in range(0, 7):
-                    sheet.write(0, i, col[i])
-                savepath = '书籍信息.xls'
-                book.save(savepath)
-            xls = xlrd.open_workbook('书籍信息.xls')
-            wbook = copy.copy(xls)
-            wsheet = wbook.get_sheet(0)
-            k=0
-            for i in range(1,n-1):
-                for j in range(0,7):
-                    wsheet.write(i,j,data[k])
-                    k=k+1
-            wbook.save('书籍信息.xls')
-            tkinter.messagebox.showinfo('提示', '删除成功！')
-            entry1.delete("0","end")
-            return
-        for k in range(0,7):
-            data.append(str(sheet.cell_value(i,k)))
-    tkinter.messagebox.showerror('错误', '未找到该图书编号的书籍信息！')
-    entry1.delete("0", "end")
-
-
-
-#删除用户
-def deleteuser():
-    delete = Tk()
-    delete .title('删除用户信息')
-    delete .geometry('275x200')
-    text1 = tkinter.Label(delete, bd=4, fg='black', text='删除账号：')
-    text1.place(x=20, y=45)
-    entry = tkinter.Entry(delete, width=20, show='')
-    entry.place(x=100, y=50)
-    button1 = tkinter.Button(delete, text='退出', command=lambda: delete.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(delete, width=8, height=1, command=lambda: getentry5(delete, entry), text='确认');
-    button2.place(x=100, y=100)
-def getentry5(modify,entry):
-    if entry.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入用户账号！')
-        return
-    account=entry.get()
-    path = '用户信息' + '\\' + account + '.xls'
-    if os.path.exists(path):
-        os.remove(path)
-        tkinter.messagebox.showinfo('提示', '删除成功！')
-    else:
-        tkinter.messagebox.showerror('错误', '未找到该图书编号的书籍信息！')
-
-
-#借书
-def borrowbook():
-    #创建用于输入借书相关信息的窗口
-    modify = Tk()
-    modify.title('借书')
-    modify.geometry('275x200')
-    text1 = tkinter.Label(modify, bd=4, fg='black', text='借书账号：')
-    text1.place(x=20, y=45)
-    entry1 = tkinter.Entry(modify, width=20, show='')
-    entry1.place(x=100, y=50)
-    text2 = tkinter.Label(modify, bd=4, fg='black', text='书籍编号：')
-    text2.place(x=20, y=95)
-    entry2 = tkinter.Entry(modify, width=20, show='')
-    entry2.place(x=100, y=100)
-    button1 = tkinter.Button(modify, text='退出', command=lambda: modify.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(modify, width=8, height=1, command=lambda: getbook(entry1,entry2), text='确认');
-    button2.place(x=100, y=150)
-def getbook(entry1,entry2):
-    #判断是否输入借书账号
-    if entry1.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入借书账号！')
-        entry2.delete("0", "end")
-        return
-    #判断是否输入书籍编号
-    if entry2.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入书籍编号！')
-        entry2.delete("0", "end")
-        return
-    account = entry1.get()
-    path = '用户信息' + '\\' + account + '.xls'
-    #判断用户是否存在
-    try:
-        xls1 = xlrd.open_workbook(path)
-        wbook1 = copy.copy(xls1)
-        wsheet1 = wbook1.get_sheet(0)
-        sheet1 = xls1.sheet_by_index(0)
-        table1 = xls1.sheets()[0]
-        #判断用户未还书籍数量，上限为5本，达到上限则不允许借书
-        y=0
-        for p in range (1,table1.nrows):
-            if sheet1.cell_value(p,8)=="否":
-                y=y+1
-        if y>=5:
-            tkinter.messagebox.showerror('错误', '该用户现已借满5本书，请先还书！')
-            entry1.delete("0", "end")
-            entry2.delete("0", "end")
-            return
-    except:
-        tkinter.messagebox.showerror('错误', '用户不存在！')
-        #清空错误的输入信息
-        entry1.delete("0", "end")
-        entry2.delete("0", "end")
-        return
-    bookid=entry2.get()
-    xls = xlrd.open_workbook('书籍信息.xls')
-    wbook=copy.copy(xls)
-    sheet = xls.sheet_by_index(0)
-    wsheet=wbook.get_sheet(0)
-    table = xls.sheets()[0]
-    n = table.nrows
-    # 查找对应书籍编号
-    t=0
-    for i in range(1, n):
-        #判断图书馆是否收录此书
-        if table.cell(i, 4).value == bookid:
-            t=1
-            #判断书籍是否有库存
-            if(int(sheet.cell_value(i,6))>0):
-                for j in range(1, table1.nrows):
-                    #判断是否已借过此书，防止重复借同本书
-                    if sheet1.cell_value(j, 5) == bookid and sheet1.cell_value(j, 8) == "否":
-                        tkinter.messagebox.showerror('错误', '已借过此书且未归还，请先归还再借！')
-                        entry2.delete("0", "end")
-                        return
-                #获取该书籍编号的书名
-                bookname=table.cell(i,0).value
-                #成功借书，库存减1
-                x=int(sheet.cell_value(i,6))-1
-                wsheet.write(i,6,str(x))
-                wbook.save('书籍信息.xls')
-            else:
-                tkinter.messagebox.showerror('错误', '此书已借出，暂无剩余库存！')
-                entry2.delete("0", "end")
-                return
-            break
-    if t==0:
-        tkinter.messagebox.showerror('错误','本馆暂无收录此书！')
-        entry2.delete("0", "end")
-        return
-    data=[]
-    now=datedays.gettomorrow(days=0)
-    data.append(str(now))
-    data.append(str(bookid))
-    data.append(str(bookname))
-    end=datedays.gettomorrow(days=30)
-    data.append(str(end))
-    data.append("否")
-    n=4
-    #从未借过书的情况
-    if sheet1.cell_value(1,4) == "无":
-        for i in range(len(data)):
-            wsheet1.write(1, n, data[i])
-            n=n+1
-    #借过书的情况
-    else:
-        for i in range(len(data)):
-            wsheet1.write(table1.nrows,n,data[i])
-            n=n+1
-    wbook1.save(path)
-    tkinter.messagebox.showinfo('提示', '借书成功！')
-    entry2.delete("0", "end")
-
-
-#还书
-def returnbook():
-    #创建用于输入还书相关信息的窗口
-    modify = Tk()
-    modify.title('还书')
-    modify.geometry('275x200')
-    text1 = tkinter.Label(modify, bd=4, fg='black', text='还书账号：')
-    text1.place(x=20, y=45)
-    entry1 = tkinter.Entry(modify, width=20, show='')
-    entry1.place(x=100, y=50)
-    text2 = tkinter.Label(modify, bd=4, fg='black', text='书籍编号：')
-    text2.place(x=20, y=95)
-    entry2 = tkinter.Entry(modify, width=20, show='')
-    entry2.place(x=100, y=100)
-    button1 = tkinter.Button(modify, text='退出', command=lambda: modify.destroy(), width=4, height=1)
-    button1.place(relx=1, rely=1, anchor='se')
-    button2 = tkinter.Button(modify, width=8, height=1, command=lambda: returnbook2(entry1, entry2), text='确认');
-    button2.place(x=100, y=150)
-def returnbook2(entry1,entry2):
-    #判断还书账号是否输入
-    if entry1.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入还书账号！')
-        entry2.delete("0", "end")
-        return
-    #判断归还书籍的书籍编号是否输入
-    if entry2.get()=="":
-        tkinter.messagebox.showerror('错误', '请输入归还书籍的书籍编号！')
-        entry2.delete("0", "end")
-        return
-    account = entry1.get()
-    path = '用户信息' + '\\' + account + '.xls'
-    #判断用户是否存在
-    try:
-        xls1 = xlrd.open_workbook(path)
-        wbook1 = copy.copy(xls1)
-        wsheet1 = wbook1.get_sheet(0)
-        sheet1 = xls1.sheet_by_index(0)
-        table1 = xls1.sheets()[0]
-    except:
-        tkinter.messagebox.showerror('错误', '用户不存在！')
-        #清空错误信息
-        entry1.delete("0", "end")
-        entry2.delete("0", "end")
-        return
-    bookid=entry2.get()
-    xls = xlrd.open_workbook('书籍信息.xls')
-    wbook=copy.copy(xls)
-    sheet = xls.sheet_by_index(0)
-    wsheet=wbook.get_sheet(0)
-    table = xls.sheets()[0]
-    n = table.nrows
-    t=0
-    d=0
-    #查找是否借过并且尚未归还此书
-    for i in range(1,table1.nrows):
-        if sheet1.cell_value(i,5)==bookid:
-            #成功查找到未还此书的借书信息
-            if sheet1.cell_value(i, 8) == "否":
-                # 查找对应书籍编号，判断图书馆是否收录有此书
-                for j in range(1, n):
-                    if table.cell(j, 4).value == bookid:
-                        d = 1
-                        #成功还书，库存加1，用户借书信息改为已还书
-                        x = int(sheet.cell_value(j, 6)) + 1
-                        wsheet.write(j, 6, str(x))
-                        wbook.save('书籍信息.xls')
-                        wsheet1.write(i, 8, "是")
-                        wbook1.save(path)
-                        break
-                #未在书籍信息表格中找到此书
-                if d == 0:
-                    tkinter.messagebox.showerror('错误', '本馆暂无收录此书！')
-                    entry2.delete("0", "end")
-                    return
-                t=1
-                break
-    #查无符合条件的借书信息
-    if t==0:
-        tkinter.messagebox.showerror('错误', '该用户无此借书信息！')
-        return
-    tkinter.messagebox.showinfo('提示', '还书成功！')
-    entry2.delete("0", "end")
-
-#若不存在名为书籍信息的表格，则创建一个
-if not os.path.exists('书籍信息.xls'):
-    book = xlwt.Workbook(encoding='utf-8', style_compression=0)
-    sheet = book.add_sheet('书籍管理系统', cell_overwrite_ok=True)
-    col = ('书名', '作者', '出版社', '出版日期','书籍编号','书籍位置','库存量')
-    for i in range(0, 7):
-        sheet.write(0, i, col[i])
-    savepath='书籍信息.xls'
-    book.save(savepath)
-#若不存在名为用户信息的文件夹，则创建一个
-path='用户信息'
-if not os.path.exists(path):
-    os.mkdir('用户信息')
-window=createwin()
-window.mainloop() # 运行主窗口，保持窗口打开状态，直到用户关闭窗口。
\ No newline at end of file
+小组分工
+学号：2100300507     姓名：张小婷   组内互评得分：99
+个人在团队中的主要工作：
+创建书籍信息表格及用户信息文件夹
+添加书籍、用户信息
+用户借书、还书
+总的以及添加部分图形界面设计
+学号：2100300504     姓名：李科涵   组内互评得分：98
+个人在团队中的主要工作：
+删除书籍、用户信息
+删除部分界面设计
+学号：2100301804     姓名：莫海林   组内互评得分：98
+修改书籍、用户信息
+修改部分界面设计
+学号：2100300603     姓名：刘晓玉   组内互评得分：98
+个人在团队中的主要工作：
+查询书籍、用户信息
+查询部分界面设计
+综合实验报告
+PPT
+学号：2100300602     姓名：何懿玲   组内互评得分：98
+个人在团队中的主要工作：
+显示所有书籍、用户信息
+统计超期限未还书用户信息
+显示和统计部分界面设计