Question

我这里有一些使用＆＃34; pickle＆＃34;的python 3代码模块。它应该存储游戏的高分。当我再次打开程序时，它会给我默认的＆＃34; A：100 ......＆＃34;高分。

def __init__(self):
    self.filename = "highscores.dat"
    self.numScores = 5

    if not os.path.isfile(self.filename):
        self.file = open(self.filename, "wb")
        self.scores = [100 for i in range(self.numScores)]
        self.names = ["A", "B", "C", "D", "E"]
        self.highscores = [(self.names[i], self.scores[i]) for i in range(self.numScores)]
        self.updateFile()
    else:
        file = open(self.filename, "rb")
        self.highscores = pickle.load(file)
        file.close()
        self.file = open(self.filename, "wb")

        self.names = [highscore[0] for highscore in self.highscores]
        self.scores = [highscore[1] for highscore in self.highscores]

 def addScore(self, name, score):
    self.scores.append(score) #Add new score 
    self.scores.sort(reverse = True) #Sort
    self.names.insert(self.scores.index(score), name)
    self.names = self.names[:self.numScores] # Top 5
    self.scores = self.scores[:self.numScores]
    self.highscores = [(self.names[i], self.scores[i]) for i in range(self.numScores)]
    self.updateFile()

def updateFile(self):
    pickle.dump(self.highscores, self.file)

这只是代码中我认为存在问题的部分。如果需要，我会发布更多。我很乐意回答你的问题。谢谢。

Answer 1

每次都需要重新打开文件进行写入。目前，每次分数在您的文件中一个接一个地更改时，您正在编写新记录。您的文件现在包含多个泡菜，但只有第一个正在阅读。

将您的代码更改为：

def __init__(self):
    self.filename = "highscores.dat"
    self.numScores = 5

    if not os.path.isfile(self.filename):
        self.scores = [100 for i in range(self.numScores)]
        self.names = ["A", "B", "C", "D", "E"]
        self.highscores = [(self.names[i], self.scores[i]) for i in range(self.numScores)]
    else:
        with open(self.filename, "rb") as f:
            self.highscores = pickle.load(f)
        self.names = [highscore[0] for highscore in self.highscores]
        self.scores = [highscore[1] for highscore in self.highscores]

def updateFile(self):
    with open(self.filename, 'wb') as f:
        pickle.dump(self.highscores, f)

addScore未更改。

每次分数变化时，高分文件现在都是从头开始。

Python酸洗问题

1 个答案: