图书管理系统-python简单实现-Python实现图书管理系统

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本文实例为大家分享了 python 实现图书管理系统的具体代码，供大家参考，具体内容如下

import mysql.connector

import sys, os

import time

import datetime

from tkinter import *

from tkinter.messagebox import *

class Libop:

user = 'root'

pwd = ''

host = 'localhost'

db = 'library'

data_file = 'mysql-test.dat'

def __init__(self):

print("init")

try:

self.library=mysql.connector.connect(user=Libop.user,password=Libop.pwd,host=Libop.host,database=Libop.db)

self.cursor=self.library.cursor()

print("Connect successfully")

except mysql.connector.Error as err:

print("WTF! initial wrong")

print("Error: {}".format(err.msg))

sys.exit()

def select(self,str):

try:

self.cursor.execute(str)

return self.cursor.fetchall()

except mysql.connector.Error as err:

print("WTF! select wrong")

print("Error:{}".format(err.msg))

print(str)

showinfo("ERROR","Please input the parameter correctly")

def update(self,str):

try:

self.cursor.execute(str)

self.library.commit()

return 1

except mysql.connector.Error as err:

print("WTF! update wrong")

print("Error:{}".format(err.msg))

return 0

def delete(self,str):

try:

self.cursor.execute(str)

self.library.commit()

except mysql.connector.Error as err:

print("WTF! delete wrong")

print("Error:{}".format(err.msg))

def insert(self,str):

try:

self.cursor.execute(str)

self.library.commit()

return 1

except mysql.connector.Error as err:

print("WTF! insert wrong")

print("Error:{}".format(err.msg))

return 0

LIB = Libop()

root=Tk()

root.wm_title("Library System")

str1=str2=''

book_type=name=year=publisher=writer=price1=price2=order=''

cardid=''

def call_rent(en1,en2,brok):

st1=en1.get()

st2=en2.get()

rent(st1,st2,brok)

def call_return(en1,en2):

st1=en1.get()

st2=en2.get()

back(st1,st2)

def login():

str1=ide.get()

str2=pwde.get()

curs=LIB.select("select manage_id,pswd from managers where manage_id='{}' and pswd='{}'".format(str1,str2))

if ((str1,str2) in curs):

showinfo('message','login success')

label_book_id=Label(root,text='BookID:').grid(row=0,column=4,sticky=W)

label_card_id=Label(root,text='CardID:').grid(row=1,column=4,sticky=W)

entry_book_id=Entry(root)

entry_book_id.grid(row=0,column=5,sticky=W)

entry_card_id=Entry(root)

entry_card_id.grid(row=1,column=5,sticky=W)

entry_cardid=Entry(root)

entry_cardid.grid(row=5,column=0,sticky=W)

#buttons

button_insert=Button(root,text='insert book',command=inbook)

button_insert.grid(row=0,column=2,sticky=W)

button_return=Button(root,text='rent book')

button_return.bind("",lambda z:call_rent(entry_book_id,entry_card_id,str1))

button_return.grid(row=0,column=3,sticky=W)

button_rent=Button(root,text='return book')

button_rent.bind("",lambda l:call_return(entry_book_id,entry_card_id))

button_rent.grid(row=1,column=2,sticky=W)

button_delete=Button(root,text='delete card')

button_delete.bind("",lambda j:deletecard(entry_cardid))

button_delete.grid(row=5,column=2,sticky=W)

button_add=Button(root,text='add card',command=addwindow)

button_add.grid(row=5,column=3,sticky=W)

button_display=Button(root,text='display books')

button_display.bind("",lambda y:display_rent(entry_cardid))

button_display.grid(row=5,column=1,sticky=W)

else:

showinfo(title='login failure',message="WRONG ID OR PASSWORD!")

#add a card

def addwindow():

top=Toplevel(root)

label_card_id=Label(top,text='card id:').grid(row=0,column=0,sticky=W)

label_name=Label(top,text='Name:').grid(row=1,column=0,sticky=W)

label_unit=Label(top,text='Units:').grid(row=2,column=0,sticky=W)

label_type=Label(top,text='type:').grid(row=3,column=0,sticky=W)

entry_card_id=Entry(top)

entry_card_id.grid(row=0,column=1,sticky=W)

entry_name=Entry(top)

entry_name.grid(row=1,column=1,sticky=W)

entry_unit=Entry(top)

entry_unit.grid(row=2,column=1,sticky=W)

entry_type=Entry(top)

entry_type.grid(row=3,column=1,sticky=W)

button_constructe=Button(top,text='Add')

button_constructe.bind("",lambda q:addcard(entry_card_id,entry_name,entry_unit,entry_type))

button_constructe.grid(row=4)

def addcard(en1,en2,en3,en4):

cardid=en1.get()

name=en2.get()

unit=en3.get()

c_type=en4.get()

select="select card_id from lib_card where card_id='{}'".format(cardid)

if (c_type not in ('T','S','O')):

showinfo('error',"NO SUCH TYPE")

return 0

line=LIB.select(select)

if (len(line)!=0):

showinfo('addition failure',"Already have this ID!")

else:

insert="insert into lib_card values('{}','{}','{}','{}')".format(cardid,name,unit,c_type)

LIB.insert(insert)

showinfo('ok','addition success')

return 1

#insert book

def inbook():

insert_book=Toplevel(root)

insert_book.title('insert book')

text_insert=Text(insert_book)

text_insert.pack()

button_confirm=Button(insert_book,text='confirm')

button_confirm.bind("",lambda x:booksin(text_insert))

button_confirm.pack()

def booksin(text_insert):

string=text_insert.get('0.0',END)

string=string.split(' ')

print(string)

for line in string:

if line=='':

break

lines=line.split(',')

bookid=lines[0][1:]

t=lines[1]

name=lines[2]

publisher=lines[3]

year=lines[4]

writer=lines[5]

price=lines[6]

total=lines[7]

stock=lines[8][:-1]

if (int(stock)>int(total) or int(price)<0):

showinfo('insert error!','stock wrong or price is below 0!')

continue

#print("insert into book values('{}','{}','{}','{}',{},'{}',{},{},{})".format(bookid,t,name,publisher,year,writer,price,total,stock))

t=LIB.insert("insert into book values('{}','{}','{}','{}',{},'{}',{},{},{})".format(bookid,t,name,publisher,year,writer,price,total,stock))

if (t==0):

showinfo('error','book {} has been inserted'.format(bookid))

showinfo('success','insert has been done')

#original window

label_type=Label(root,text='TYPE').grid(row=3,sticky=W,column=0)

label_name=Label(root,text='NAME').grid(row=3,sticky=W,column=1)

label_year=Label(root,text='YEAR(XXXX-XXXX)').grid(row=3,sticky=W,column=2)

label_publisher=Label(root,text='PUBLISHER').grid(row=3,sticky=W,column=3)

label_writer=Label(root,text='WRITER').grid(row=3,sticky=W,column=4)

label_lowprice=Label(root,text='lowestprice').grid(row=3,sticky=W,column=5)

label_highprice=Label(root,text='highestprice').grid(row=3,sticky=W,column=6)

label_order=Label(root,text='order by').grid(row=0,sticky=W,column=6)

entry_type=Entry(root)

entry_type.grid(row=4,column=0,sticky=W)

entry_name=Entry(root)

entry_name.grid(row=4,column=1,sticky=W)

entry_year=Entry(root)

entry_year.grid(row=4,column=2,sticky=W)

entry_publisher=Entry(root)

entry_publisher.grid(row=4,column=3,sticky=W)

entry_writer=Entry(root)

entry_writer.grid(row=4,column=4,sticky=W)

entry_price1=Entry(root)

entry_price1.grid(row=4,column=5,sticky=W)

entry_price2=Entry(root)

entry_price2.grid(row=4,column=6,sticky=W)

#order the result

order_index=0

Lb_order=Listbox(root,selectmode=SINGLE,height=6)

order='name','book_type','T','writer','price','publisher'

Lb_order.insert(0,order[0])

Lb_order.insert(1,"type")

Lb_order.insert(2,"year")

Lb_order.insert(3,order[3])

Lb_order.insert(4,order[4])

Lb_order.insert(5,order[5])

Lb_order.grid(row=0,column=7,sticky=W)

Lb_order.selection_set(0)

def booksearch():

select="select BookID,book_type,name,publisher,T,writer,price,total,stock from book"

order_index=Lb_order.curselection()

if (len(order_index)!=0):

order_index=order_index[0]

else:

order_index=0;

orders=order[order_index]

name=entry_name.get()

book_type=entry_type.get()

publisher=entry_publisher.get()

year=entry_year.get()

writer=entry_writer.get()

price1=entry_price1.get()

price2=entry_price2.get()

year1=year[0:4]

year2=year[5:9]

count=0

if name!='':

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" name='{}'".format(name)

if book_type!='':

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" book_type='{}'".format(book_type)

if publisher!='':

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" publisher='{}'".format(publisher)

if year1!='':

if year2=='':

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" t={}".format(year1)

else:

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" T between {} and {}".format(year1,year2)

if writer!='':

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" writer='{}'".format(writer)

if price1!='':

if price2!='':

if count!=0:

select+=" and"

else:select+=" where"

count+=1

select+=" price between {} and {}".format(price1,price2)

else:

if count!=0:

selece+="and"

else:select+=" where"

count+=1

select+=" price={}".format(price1)

if orders=='':

select+=" order by name"

else:

select+=" order by {}".format(orders)

print(select)

curs=LIB.select(select)

searchresult=Toplevel(root)

searchresult.title('result')

text=Text(searchresult)

text.insert(INSERT,"BookID type name publish year writer price total stock ")

for (BookIDs,book_types,names,publishers,years,writers,prices,totals,stocks) in curs:

text.insert(INSERT,"{} {} {} {} {} {} {} {} {} ".format(BookIDs,book_types,names,publishers,years,writers,prices,totals,stocks))

text.pack()

def display_rent(en_cardid):

cardid=en_cardid.get()

select="select card_id from lib_card where card_id='{}'".format(cardid)

curs=LIB.select(select)

order_index=Lb_order.curselection()

if len(order_index)!=0 :

order_index=order_index[0]

else:

order_index=0;

orders=order[order_index]

if ((cardid,) in curs):

select="select card_id,name,unit,c_type from lib_card where card_id='{}'".format(cardid)

curs=LIB.select(select)

top=Toplevel(root)

text=Text(top)

for (card_id,name,unit,c_type) in curs:

text.insert(INSERT,"card_id:{} ".format(card_id))

text.insert(INSERT,"name:{} ".format(name))

text.insert(INSERT,"unit:{} ".format(unit))

text.insert(INSERT,"c_type:{} ".format(c_type))

select="select BookID,book_type,name,publisher,t,writer,price,total,stock from book natural join record where card_id='{}' and still=1 order by {}".format(cardid,orders)

curs=LIB.select(select)

text.insert(INSERT,"BookID type name publish year writer price total stock ")

for (BookID,book_type,name,publisher,t,writer,price,total,stock) in curs:

text.insert(INSERT,"{} {} {} {} {} {} {} {} {} ".format(BookID,book_type,name,publisher,t,writer,price,total,stock))

text.pack()

else:

showinfo('Error',"NO SUCH CARD")

def checkcard(cardid):

select="select card_id from lib_card where card_id='{}'".format(cardid)

curs=LIB.select(select)

if (cardid,) in curs:

return 1

else:

return 0

def rent(BookID,cardid,brokerage):

if not (checkcard(cardid)):

showinfo('error','no such card')

return 0

select="select stock from book where BookID='{}'".format(BookID)

stocks=LIB.select(select)

#stocks=curs.fetchall()

stock=stocks[0]

if (stock>(0,)):

update="update book set stock=stock-1 where BookID='{}'".format(BookID)

flag=LIB.update(update)

if flag:

insert="insert into record values('','{}','{}',CURDATE(),DATE_ADD(CURDATE(),INTERVAL 1 MONTH),'{}',1)".format(cardid,BookID,brokerage)

LIB.insert(insert)

showinfo('rent success','OK')

else:

showinfo('rent failure',"stock wrong")

else:

select="select return_time from record where BookID='{}' and return_time>=all(select return_time from record where BookID='{}')".format(BookID,BookID)

date=LIB.select(select)

#date=curs.fetchall()

date=str (date)

showinfo('Out of stock',"There are no more such book,The recent returning will be at:{}-{}-{}".format(date[16:20],date[22:23],date[26:27]))

return 1

def back(BookID,cardid):

if not(checkcard(cardid)): return 0

select="select BookID from record where BookID='{}' and card_id='{}' and still=1".format(BookID,cardid)

curs=LIB.select(select)

if (BookID,) in curs:

select="select record_id from record where BookID='{}' and card_id='{}' and still=1 order by rent_time".format(BookID,cardid)

cur=LIB.select(select)

#cur=curss.fetchall()

for record in cur:

recordid=str (record)

recordid=recordid[1:]

recordid=recordid[:-2]

update="update record set still=0 where record_id='{}'".format(recordid)

LIB.update(update)

update="update book set stock=stock+1 where BookID='{}'".format(BookID)

LIB.update(update)

break

showinfo('message',"Return Success!")

return 1

else:

showinfo('error',"You can't return the book!")

return 1

def deletecard(card):

cardid=card.get()

if not (checkcard(cardid)):

showinfo('error',"NO SUCH CARD")

return 0

select="select record_id from record where card_id='{}' and still=1".format(cardid)

curs=LIB.select(select)

for record_id in curs:

showinfo('error',"Some books this card rented haven't been returned")

return 0

delete="delete from lib_card where card_id='{}'".format(cardid)

LIB.delete(delete)

showinfo('ok','success')

return 1

label_id=Label(root,text='ID: ')

label_id.grid(row=0,sticky=W)

ide=Entry(root)

ide.grid(row=0,column=1,sticky=E)

label_psw=Label(root,text='PassWord: ').grid(row=1,sticky=W)

pwde=Entry(root,show='*')

pwde.grid(row=1,column=1,sticky=E)

log_button=Button(root,text='Login',command=login)

log_button.grid(row=2,column=1)

button_search=Button(root,text='Search Book',command=booksearch)

button_search.grid(row=4,column=7,sticky=W)

print("all done")

root.mainloop()

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持Codercto.com。

以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，也希望大家多多支持 码农网

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