不好意思的标题！
对于我的计算机科学GCSE，我得到了一个20小时的项目。其中大部分已完成且功能齐全，但是我为最后一步而苦苦挣扎。
我做到了，以便用户可以将他们的最终分数存储到外部文件中，并且该文件的内容会在游戏结束时打印出来。但是，我希望它仅显示前5名得分手，并且将得分从最高到最低进行分类。
在每个位置旁边显示一个数字，可以表明他们在董事会上的位置，这很酷，但是如果这样做很难，我可以跳过它。
这是定义排行榜的代码部分：
def leaderboard():
print ("\n")
print ("⬇ Check out the leaderboard ⬇") #LEADERBOARD SECTION
f = open('H_Highscore.txt', 'r')
leaderboard = [line.replace('\n','') for line in f.readlines()]
for i in leaderboard:
print(i)
f.close()
time.sleep(10)
sys.exit()
这是写入页首横幅的代码：
user = str(input("Enter a name to save your highscore: "))
file = open ("H_Highscore.txt", "a")
file.write("\n")
file.write(user)
file.write(",")
file.write(str(score)) # (int(x)) can not be written
file.write("pts")
file.write("\n")
file.close()
time.sleep(0.5)
leaderboard()
sys.exit()
如果需要，这里是整个程序：
#Casey_Neale
import sys
import random
import time
import math
import csv
import time, sys
import datetime
newaccounts=True #DEVELOPMENT
loggedIn=False #PURPOSES
yn=True #ONLY
from threading import Timer
TIMELIMIT = 5.0 #Timer in secs, lowered for development and testing
time_ran_out = False #Global
'''
Known bugs and needed improvements are stored in G_Bugs.txt
The report for this project is entitled "D_ProjectReportTemplate.docx
Songs stored externally to F_Songs.txt
'''
def tutorial(): #Games introduction
slow_print("Your aim is to get as many points as possible...\n")
#print("\n")
time.sleep(1.5)
slow_print("You need to guess the name of each song to gain points...\n")
# print("\n")
time.sleep(1.5)
slow_print("You have two guesses for each song...\n")
# print("\n")
time.sleep(1.5)
slow_print ("The artist name is provided for you...\n")
time.sleep(1.5)
slow_print("There is an ingame timer, so good luck!")
time.sleep(1.5)
print("\n")
print("\n")
def slow_print(s):
for c in s:
sys.stdout.write( '%s' % c )
sys.stdout.flush()
time.sleep(0.03)
def timeout():
global time_ran_out
time_ran_out = True
def leaderboard():
print ("\n")
print ("⬇ Check out the leaderboard ⬇") #LEADERBOARD SECTION
f = open('H_Highscore.txt', 'r')
leaderboard = [line.replace('\n','') for line in f.readlines()]
for i in leaderboard:
print(i)
f.close()
time.sleep(10)
sys.exit()
def loginsys():
doublecheck=True
while doublecheck == True:
slow_print("➡Welcome | Are you a registered user?\n[Y/N]: ")
verifyRegister = input()
print (" ")
if verifyRegister == "n" or verifyRegister == "N": #If the user is not already registered
if newaccounts == True:
loop=True
while loop == True:
username = input ("Please enter a username\n[User]: ")#Prompts the user to provide a desired username
print (" ")#Prompts for username
checkusername = input ("Please retype your username\n[Verify]: ")#Verifys username
print (" ")#Prompts to verify username
if checkusername != username:
print ("Invalid, please try again")
loop=True
else:
loop=False
time.sleep(0.5)
passloop=True
while passloop == True:
password = input ("Please enter a password\n[Password]: ") #Prompts the user to provide a desired password
print (" ")#Prompts for password
checkpassword = input ("Please retype your password\n[Verify]: ") #Verifys password
print (" ")#Prompts to verify password
if checkpassword != password:
print ("Invalid, please try again")
print (" ")
passloop=True
else:
passloop=False
file = open("C_AccountData.txt","a") #Opens the file C_AccountData.txt in write mode/opens connection
file.write("USRN:") #Prefix Username to make the file easier to read
file.write(username) #Writes the username
file.write("|") #Partition for visual ease to make the file easier to read
file.write("PSWD:") #Prefix Password to make the file easier to read
file.write(password)#Writes the password
file.write("\n") #New line to make the file easier to read
file.close() #Closes file/ends connection
print ("✓Your account has been created") #Verifies that the account has been made to the user
time.sleep(2)
print ("\n")
doublecheck=True #Loop
if verifyRegister == "Y" or verifyRegister == "y":
loop=True
if loop == True:
user = input("[User]: ")
passw = input("[Password]: ")
if passw == (""):
print("You did not enter a password")
loop=True
time.sleep(2)
sys.exit() #If the end user does not enter a password, the program will terminate. This is to prevent a security concern where users can freely login to existing accounts by leaving the password field empty
break
f = open("C_AccountData.txt", "r")
for line in f.readlines():
uspwd = line.split("|")
us = uspwd[0]
pw = uspwd[1]
if (user in us) and (passw in pw):
loop=False
print("Login successful, welcome",user)
print("\n")
doublecheck=False
else:
if loop == True:
print ("\n")
print ("Sorry, your account details were not recognised. ") #Reject
else:
if verifyRegister != "Y" or verifyRegister != "y" or verifyRegister != "N" or verifyRegister != "n" or verifyRegister !="backup":
print("\n")
doublecheck=True
def pickSong_random():
global time_ran_out
score = 0
lives = 5
songFile = open("F_Songs.txt", "r")
songList = songFile.readlines() # Reads from the bridged file
songFile.close()
while True:
chosenSong = random.choice(songList)
chosenSong = chosenSong.strip("\n")
artistAndSong = chosenSong.split(":") # Defines song split
toDisplay = ""
toDisplay += artistAndSong[0] + ": "
songTitleWords = artistAndSong[1].split(" ")
for word in songTitleWords:
# loop through
toDisplay += word[0] + " "
print(toDisplay)
# print("2" +toDisplay)
toDisplay = toDisplay.strip("None")
guesses = 0
timer = Timer(TIMELIMIT, timeout) # Create a timer thread object.
time_ran_out = False # Initialize the variable the callback modifies.
timer.start() # Start the background timer.
while guesses < 2:
if time_ran_out:
print('Times up!')
time.sleep(3)
print ("You managed to score",score,"point(s)")
time.sleep(3)
print("\n")
slow_print("Would you like to play again?")
playAgain = input("\n[Y/N]: ")
if playAgain == ("n") or playAgain == ("N"):
print("\n")
# user variable is not saved from the login system as it is
# defined as a function separately
user = str(input("Enter a name to save your highscore: "))
file = open ("H_Highscore.txt", "a")
file.write("\n")
file.write(user)
file.write(",")
file.write(str(score)) # (int(x)) can not be written
file.write("pts")
file.write("\n")
file.close()
time.sleep(0.5)
leaderboard()
sys.exit()
if playAgain == ("Y") or playAgain == ("y"):
print("Your last score was", score,", lets see if you can beat it this time...")
time.sleep(1)
print("\n")
pickSong_random()
time.sleep(2)
break
guesses += 1
guess = input("[Enter your guess]: ")
# Guess checking
if guess.lower() == artistAndSong[1].lower():
print("✓Correct! The song was '" + artistAndSong[1]
+ "' by " + artistAndSong[0])
print("It took you", guesses, "guess(es)!")
if guesses == 1:
print("\n")
print("↑(+3 points)↑")
print("\n")
score += 3
break
elif guesses == 2:
print("\n")
print("↑(+1 point)↑")
print("\n")
score += 1
break
else:
print("╳The song name isn't", guess, "\n")
lives = lives-1
if guesses == 2:
print("Sorry, you couldn't guess the song.")
print("\n")
if lives == 0:
print("You have no more lives to continue! Your score was:", score)
time.sleep(3)
print("\n")
slow_print("Would you like to play again?")
playAgain = input("\n[Y/N]: ")
if playAgain == ("n") or playAgain == ("N"):
print("\n")
# user variable is not saved from the login system as it is
# defined as a function separately
user = str(input("Enter a name to save your highscore: "))
file = open ("H_Highscore.txt", "a")
file.write(user)
file.write(",")
file.write(str(score)) # (int(x)) can not be written
file.write("pts")
file.write("\n")
file.close()
time.sleep(0.5)
leaderboard()
sys.exit()
if playAgain == ("Y") or playAgain == ("y"):
print("Your last score was", score,", lets see if you can beat it this time...")
time.sleep(1)
print("\n")
pickSong_random()
#if __name__ == '__main__':
print(" ___|)________________________________________________________")
print("|___/____________________________|___________________________||")
print("|__/|_______/|____/|_____/|______|___________________________||")
print("|_/(|,\____/_|___/_|____/_|______|___________________________||")
print("|_\_|_/___|__|__|__|___|__|___|__|___________________________||")
print("| | | () | () | () | | ||")
print("| (_| -()- -()- -()- -()- | -()- -()- -()- -()- ||")
print("|________________________________|__|__()_|__()_|__()__|_____||")
print("|__/___\_._______________________|__|__|__|__|__|__|___|_____||")
print("|__\___|_._______________________|___\_|___\_|___\_|___|_____||")
print("|_____/__________________________|____\|____\|____\|_________||")
print("|____/___________________________|___________________________||")
print(" This project was developed by Casey Neale")
clockTime = time.asctime( time.localtime(time.time()) )
print (" ",clockTime) #Displays the current time and date. No real reason, just to look pleasing
print("\n")
print("\n")
loginsys() #LOGIN PROTOCOL
time.sleep(3)
#print("\n")
tutorial() #TUTORIAL PROTOCOL
slow_print ("\nPrepare yourself! The game will begin in...\n") #COUNTDOWN TO GAME TIME
time.sleep(0.5)
print("\n")
slow_print("5...")
time.sleep(0.5)
print("\n")
slow_print("4...")
time.sleep(0.5)
print("\n")
slow_print ("3...")
time.sleep(0.5)
print("\n")
slow_print ("2...")
time.sleep(0.5)
print("\n")
slow_print ("1...")
time.sleep(0.5)
print("\n")
print("\n")
print("\n")
print(" ________ _________ ________ ________ _________ ")
print("|\ ____\|\___ ___\\ __ \|\ __ \|\___ ___\ ")
print("\ \ \___|\|___ \ \_\ \ \|\ \ \ \|\ \|___ \ \_|")
print(" \ \_____ \ \ \ \ \ \ __ \ \ _ _\ \ \ \ ")
print(" \|____|\ \ \ \ \ \ \ \ \ \ \ \\ \| \ \ \ ")
print(" ____\_\ \ \ \__\ \ \__\ \__\ \__\\ _\ \ \__\ ")
print(" |\_________\ \|__| \|__|\|__|\|__|\|__| \|__|")
print(" \|_________| ")
print("\n")
print("\n")
pickSong_random() #GAME PROTOCOL
sec
sys.exit() #EXIT PROTOCOL
很显然，这很麻烦，因此，如果您不厌其烦地尝试它，那就太好了！感谢您的光临，祝您有美好的一天！
答案 0 :(得分：1)
我建议将排行榜的字符串列表转换为（str，int）元组的列表，对列表进行排序并按如下方式打印前5个：
leaderboard_tuples = [tuple(x.split(',')) for x in leaderboard]
leaderboard_tuples.sort(key=lambda tup: tup[1])
答案 1 :(得分：0)
指针，将问题分解为一系列步骤，然后继续阅读：
考虑也许：
代码片段：
scores.append((user_name,score)) #core is of type list
i = 0
while i < limit:
item = sorted_list[i]
print ("first item of tupple: {} second item:{}".format(item[0],item[1]))
i+=1
提示：在排序之前，请不要忘记将分数从字符串转换为int。