2.python Simulated ant loan (original)

The ants borrowed

1. Implement

#!/usr/bin env python#-*-coding:utf-8-*-import datetimeimport timeimport redef Register (name, account, date, mounths): ':p Aram Name: Borrower's name:p Aram Date: Borrowing date:p Aram account: Borrowing amount:p Aram mounths: Number of months: return: "fi  Rstline = ' Username: ' + name + ' \ n ' secondline = ' * 8 + ' money: ' + account + ' \ n ' thridline = ' * 8 + ' Date: ' +    Date + ' \ n ' fourthline = ' * 8 + ' times: ' + mounths + ' \ n ' lastline = ' * 8 + ' Interest (day): 0.0004 ' + ' \ n ' With open (' Datebase.log ', ' a ', encoding= ' Utf-8 ') as F1:f1.write (Firstline) f1.write (secondline) F1.W        Rite (Thridline) f1.write (fourthline) f1.write (lastline) if exist (name): Return True Else: return Falsedef Repay (name, account, time): "' Repayment:p Aram Name: User name:p Aram: Repayment amount: Return: Remaining repayment amount,             How much money should be paid "' F = ' green light ' result = [] with open (' Datebase.log ', ' R ', encoding= ' Utf-8 ') as F1:for line in F1: If Line.striP () = = ' username:%s '% name:f = ' red light ' continue if f = = ' red light ': if Li                    Ne.strip (). StartsWith (' Username '): F = ' green light ' break else: If Line.strip (): Result.append (Line.strip ()) F = ' green light ' Replace1 = Re.search (R ' \d+ ', resu Lt[0]). Group () Replace2 = str (int (REPLACE1)-int (account) result[0] = Result[0].replace (Replace1, Replace2) rep Lacea, replaceb, REPLACEC = Re.search (R ' (\d+)-(\d+)-(\d+) ', result[1]). Groups () Replace2 = Replacea + '-' + str (INT (rep LACEB) + int (time)) + '-' + replacec result[1] = result[1].replace (replacea + '-' + replaceb + '-' + REPLACEC, Replace2 ) Replace1 = Re.search (R ' \d+ ', result[2]). Group () Replace2 = str (int (REPLACE1)-int (time)) result[2] = result[2] . replace (Replace1, Replace2) with open (' Datebase.log ', ' R ', encoding= ' utf-8 ') as-old, open (' NewDatebase.log ', ' W ', Enco   ding= ' Utf-8 ') as NEW:     For line in Old:if line.strip () = = ' username:%s '% name:f = ' red light ' new.write (line) for new_line in Result:new.write (' * 8 + new_line + ' \ n ') Conti Nue if f = = ' green light ': New.write (line) else:if Line.strip (). StartsWith (' Ba Ckend '): F = ' green light ' new.write (line) with open (' NewDatebase.log ', ' R ', encoding= ' UTF -8 ') as old, open (' Datebase.log ', ' W ', encoding= ' utf-8 ') as-new:for line-in-Old:new.write (line) def Cha  Xun (name): ":p Aram Name: User name: return: Monthly repayment condition ' F = ' green light ' result = [] with open (' Datebase.log ', ' R ', encoding= ' Utf-8 ') as F1:for line in F1:if line.strip () = = ' username:%s '% name:f = ' Red Lamp ' Result.append (Line.strip ()) Continue if f = = ' red light ': if Line.stri P (). StartsWith (' Username'): F = ' green light ' break Else:if Line.strip (): Result.append (Line.strip ()) return resultdef exist (name): Flage = ' cannot find ' with open (' Datebase.log ',  ' R ', encoding= ' Utf-8 ') as F:for line in F:if line.startswith (' Username: ' + name): Flage = ' found ' break if flage = = ' found ': Return True else:return falsedef Lix  I (list): # [' Username:wuwen ', ' money:1000 ', ' date:2017-8-10 ', ' times:10 ', ' Interest ': 0.0004 '] years, mounths, days = Re.search (R ' (\w+)-(\w+)-(\w+) ', list[2]). Groups () times = Re.search (R ' \d+ ', List[3]). Group () moneys = Int (re.sear CH (R ' \d+ ', list[1]). Group ()) for I in range (1, int (times) + 1): if int (mounths) < 12:mounths = St             R (Int (mounths) + 1) date = '%s-%2s-%2s '% (years, mounths, days) Money_oringin = Moneys/int (Times) Money_intereSt = Moneys * 0.0004 * print (' \033[36;1m%2s period: date:%s Moneys + interest:%5s +%5s =%5.2f\033[0m '% (i,                                                                                           Date, Money_oringin,                                                                                           Money_interest, Money_interest + money_oringin)) Moneys = moneys- Money_oringin times = str (int (times)-1) else:years = str (int (years) + 1) mounth s = str (int (mounths)-one) date = '%s-%2s-%2s '% (years, mounths, days) Money_oringin = Moneys/int (times) money_interest = Moneys * 0.0004 * print (' \033[36;1m%2s: date:%s Moneys + interest:%5s +%5s =%5.2f\033[0m '% (i, date        , Money_oringin,                                                                                   Money_interest, Money_interest + money_oringin)) moneys = mo Neys-money_oringin times = str (int (times)-1) continueif __name__ = = ' __main__ ': # \033[31;1m \033[0m 1 is Red 2 for green 3 for yellow 4 for dark blue 5 grape red 6 light blue 7 light gray 8 black while true:options = input (' \033[31;1m Please enter option, 1: Borrow money 2: Pay back $3: query Enter Yo ur option:\033[0m ') if options = = ' 1 ': While true:name = input (' \033[32;1m Please enter username: \033[0m ' if exist (name): result = Chaxun (name) remain = Result[1].split (': ')                        ) [1] if int (remain) > 0:print (' \033[33;1m please pay off the balance and try to borrow money again: \033[0m ')                    Continue else:account = input ("\033[33;1m input you want to borrow to get amount: \033[0m") Mounths = input ("\033[33;1m Enter the number of months you are staging, 6 or 12:\033[0m ") date = str (Datetime.date.today ()) If register (name, acc Ount, date, mounths): Print (' \033[34;1m borrows the success, the daily rate is four out of 10,000, please repay 5 days before the next month!! \033[0m ') break elif options = = ' 2 ': while true:name = input (' \03 3[32;1m Please enter user name: \033[0m ') if exist (name): result = Chaxun (name) print (' \033[33;1m%s\033[0m '% result) lixi (result) times = input (' \033[33;1m Enter the number you want: \033[0                    M ') account = input (' \033[33;1m Please enter the correct principal: \033[0m ') repay (name, account, times) result = Chaxun (name) print (' \033[33;1m%s\033[0m '% result) Lixi (Result ) Break Else:print (' \033[33;1m user does not exist!! \033[0m ') Continue elif options = = ' 3 ': while TruE:name = input (' \033[32;1m Please enter the user name to query: \033[0m ') if exist (name): result = Chaxun (name) print (' \033[33;1m%s\033[0m '% result) Lixi (result) b Reak Else:print ("No This user") Continue print (' \033[34;1m3s back home \03 3[0m ') Time.sleep (3)

2. Effect display

　　1.1: Borrowing money

　　

　　2.1: Storage format

　　

　　3.1: Pay back

　　

　　3.2: After modification

　　

　　4.1: Query

　　

2.python Simulated ant loan (original)