我正在尝试调试一些为家庭作业编写的代码，但是无论如何尝试，我都无法修复会发生的错误。
我尝试从朋友那里复制一些代码，但是无论我尝试使用什么代码，我都会不断收到此错误。
#NEA 2019 DICE GAME
from time import sleep as wait
from random import randint as rand
#Here I have imported my modules that I will use later on.
Check1 = 0
#Here I create a check variable, for use in the usernames section.
print("welcome to Dice Game!")
print("Main Menu: \n 1. Play Game \n 2. Register User \n 3. View Leaderboard \n 4. Quit Game")
MenuChoice = int(input("Please enter the number of the option you would like to choose."))
#Nice greeting for the user, and a menu.
elif MenuChoice == 1:
while Check1 == 0:
Namae = input("Player One, Please enter your username: \n")
with open('Usernames.txt') as openfile:
if Namae in openfile.read():
print("Username",Namae, "Valid!")
Check1 = 1
Pass = input("Please enter the passkey:")
if Pass == 'VN467' or Pass == 'Backdoor':
#This 'if' statement allows the user to log in using a universal passkey, or allows an administrator to log in using a backdoor.
print("User Authenticated!")
else:
print("Invalid Passkey!")
else:
print("Username",Namae, "Invalid!")
#This block allows a user to log in as player 1.
while Check1 == 1:
Namae2 = input("Player Two, Please enter your username: \n")
if Namae == Namae2:
print("Both players can't have the same username!")
Namae2 = ''
with open('Usernames.txt') as openfile:
if Namae2 in openfile.read():
print("Username", Namae2, "Valid!")
Check1 = 0
Pass = input("Please enter the passkey:")
if Pass == 'VN467' or Pass == 'Backdoor':
print("User Authenticated!")
else:
print("Invalid Passkey!")
else:
print("Username", Namae2, "Invalid!")
#This block allows a user to log in as player 2.
P1total = 0
P2total = 0
for i in range (1,5):
print("Game starting!")
wait(1)
print("ROUND", i)
print(Namae, " Press 'Enter' to roll")
#This gives the player a message box to allow them to roll.
Roll1 = rand(1,6)
Roll2 = rand(1,6)
#This is the command to roll the dice.
if Roll1 == Roll2:
print("Double! You get an extra dice!")
Roll3 = rand(1,6)
#This gives the player another dice if they roll a double.
else:
Roll3 = 0
#This sets the value of Roll3 to zero, to prevent a NameError later on.
TempTotal = Roll1 + Roll2 + Roll3
print("The total of the dice is", TempTotal)
#These lines add together all of the dice.
if TempTotal%2 == 0:
print("Even total! +10 points!")
TempTotal = TempTotal + 10
#These lines check if the dice total is even, then adds 10 if it is.
else:
print("Odd total! -5 points")
TempTotal = TempTotal - 5
#These lines check if the dice total is odd, then subtracts 5 if it is.
P1total = P1total + TempTotal
if P1total < 0:
P1total = 0
#These lines make sure that the total cannot go below 0, and sets it to 0 if it does.
print(Namae, "Your total is", P1total)
#This prints the current total for player 1.
print(Namae2," Press 'OK' to roll")
Roll1 = rand(1,6)
Roll2 = rand(1,6)
#This rolls the two dice.
if Roll1 == Roll2:
print("Double! You get an extra dice!")
Roll3 = rand(1,6)
#This adds another dice if the player rolls a double.
else:
Roll3 = 0
#This sets Roll3 to 0 to prevent a NameError later on in the code.
TempTotal = Roll1 + Roll2 + Roll3
#This adds up the dice to create a total.
print("The total of the dice is", TempTotal)
#This tells the player what the dice rolled.
if TempTotal%2 == 0:
print("Even total! +10 points!")
TempTotal = TempTotal + 10
#This adds 10 points to the total if they roll an even number.
else:
print("Odd total! -5 points")
TempTotal = TempTotal - 5
#This takes away 5 points from the total if they roll an odd number.
P2total = P2total + TempTotal
if P2total < 0:
P2total = 0
print(Namae2, "Your total is", P2total)
if P1total == P2total:
print("There is a draw! \n Both players will roll 1 die.")
Roll1 = rand(1,6)
Roll2 = rand(1,6)
#This makes it so that there cannot be a draw
print("Player 1 rolls a", Roll1, "\n Player 2 rolls a",Roll2)
while Roll1 == Roll2:
print("Another Draw!")
Roll1 = rand(1,6)
Roll2 = rand(1,6)
#This makes it so that if the first reroll ends in a draw, there will keep being rerolls until there is no longer a draw.
print("Player 1 rolls a", Roll1, "\n Player 2 rolls a",Roll2)
if Roll1 > Roll2:
print(Namae, "Wins!")
#Prints a winning message.
else:
print(Namae2, "Wins!")
#This prints a winning message
elif P1total > P2total:
print(Namae, "wins!")
Winner = Namae
WinScore = P1total
#This prints a message if player 1 wins
else:
print(Namae2, "wins!")
Winner = Namae2
WinScore = P2total
#This prints a message if player 1 wins.
#Winscore and Winner are used to append the winner to a file later on.
LeaderboardFile = open("Leaderboard.txt", "a+")
#This opens the file to be appended
FullFileInput = Winner + "," + str(WinScore) + "\n"
#This combines the two variables from earlier into one, to make it easier to append.
LeaderboardFile.write(FullFileInput)
#This appends FullFileInput to the file.
LeaderboardFile.close
#Closes the File.
print("Top 5 Scores:")
LeaderboardFile = open("Leaderboard.txt", "r")
#Opens the file for reading.
Array = []
#Creates an empty array
FileLength = len(open("Leaderboard.txt").readlines())
#This reads how many lines the file has
for counter in range(FileLength):
record = LeaderboardFile.readline()
cells = record.split(",")
#This splits the file every time there is a comma
Array.append(cells)
SortedArray = sorted(Array, key = lambda x: x[1])
#This sorts the list in descending order, using score.
x = 1
for counter in range(0,5):
print(len(SortedArray))
holder = SortedArray[(len(SortedArray)-x)]
#This causes an error, for seemingly no reason.
print(x, ":",holder[0], holder[1])
#This prints the leaderboard, one line at a time.
x = x + 1
#Increments x by 1.
elif MenuChoice == 3:
print("Top 5 Scores:")
LeaderboardFile = open("Leaderboard.txt", "r")
Array = []
FileLength = len(open("Leaderboard.txt").readlines())
for counter in range(FileLength):
record = LeaderboardFile.readline()
cells = record.split(",")
Array.append(cells)
SortedArray = sorted(Array, key = lambda x: x[1])
x = 1
for counter in range(5):
holder = SortedArray[(len(SortedArray)-x)]
print(x, ":",holder[0], holder[1])
x = x + 1
#Lines 198 to 211 are all copied and pasted from the leaderboard earlier.
#This code is a formatting disaster, I'm sorry.
弄乱了游戏一段时间后，每次尝试显示排行榜时都会出现错误，我有一些文件。
Leaderboard.txt ：
包含得分格式：
Username1,score
Username2,score
依此类推...
Usernames.txt ： 包含所有有效的用户名。
我希望结果类似于以下内容：
Top 5 Scores:
1: Alpha 100
2: Beta 91
3: Gamma 85
4: Delta 76
5: Epsilon 69
相反，代码显示：
Top 5 Scores:
1: Alpha 1
2: Alpha 1
（这始终将文件中的第一个值打印两次，而不对其进行排序。）
然后我得到错误：
Traceback (most recent call last):
File "main.py", line 200 in <module>
holder = SortedArray[(len(SortedArray)-x)]
IndexError: list index out of range.
答案 0 :(得分：0)
“ IndexError：列表索引超出范围”表示您的列表索引超出范围。您正在尝试引用某个甚至不存在的索引。
holder = SortedArray[(len(SortedArray)-x)]
x = x + 1
例如，如果x变得大于（len（SortedArray），您将得到一个负索引，可以触发该错误。
答案 1 :(得分：0)
希望您不介意，但我重写了部分代码。
elif MenuChoice == 3:
print("Top 5 Scores:")
Array = []
try:
with open("Leaderboard.txt", "r") as LeaderboardFile:
for l in LeaderboardFile.readlines():
name, score = l.split(',')
name = name.strip()
score = int(score.strip())
Array.append([name, score])
except Exception:
print('FileNotFound')
Array = sorted(Array, key = lambda x: x[1], reverse=True)
for i in range(5):
print(f'{i+1}: {Array[i][0]} {Array[i][1]}')
请下次注意，由于此问题非常针对您自己的代码，因此不太适合SO，但更适合https://codereview.stackexchange.com/。
祝您作业愉快。