Question

我刚开始使用Python处理JSON。我有一个程序，在其中生成具有多个属性的10个字符（对象）。我使用Python JSON库将这些内容写入文件：

def saveCharsToFile(gameChars):
# Using a WITH operator for easy readability. creating and opening a file
# in write mode
with open("characterFile.json", "w") as write_file:
    # using the json.dump function to take the objects in the gameChars
    # list and serialise it into JSON
    json.dump([x.__dict__ for x in gameChars], write_file)
    # Tells the User that the file has been written

print("File 'characterFile.json' has been written to...")

以下是生成字符的类之一的示例：

# A subclass for creating a Wizard character, inherits the Character class
# and adds the power, sAttackPwr, and speed properties
class wizard(character):
    def __init__(self, CharPower, CharSAttackPwr, CharSpeed):
        # Getting the properties from the inheritted character Base Class
        character.__init__(self, "W", 100)
        self.power = CharPower
        self.sAttackPwr = CharSAttackPwr
        self.speed = CharSpeed


# Base Class for creating an RPG character
class character:
    # __init__ method, creates the name, type, health properties
    def __init__(self, charType, charHealth):
        self.name = rndName()
        self.type = charType
        self.health = charHealth

以下是使用saveCharsToFile保存的文件的内容：

[{"name": "ing low fu ", "type": "B", "health": 100, "power": 60, "sAttackPwr": 10, "speed": 60}, {"name": "en ar da ", "type": "W", "health": 100, "power": 50, "sAttackPwr": 70, "speed": 30}, {"name": "ar fu fu ", "type": "B", "health": 100, "power": 70, "sAttackPwr": 20, "speed": 50}, {"name": "da low en ", "type": "W", "health": 100, "power": 50, "sAttackPwr": 70, "speed": 30}, {"name": "da fu cha ", "type": "D", "health": 100, "power": 90, "sAttackPwr": 40, "speed": 50}, {"name": "da ing el ", "type": "W", "health": 100, "power": 50, "sAttackPwr": 70, "speed": 30}, {"name": "cha kar low ", "type": "D", "health": 100, "power": 90, "sAttackPwr": 40, "speed": 50}, {"name": "ar da el ", "type": "D", "health": 100, "power": 90, "sAttackPwr": 40, "speed": 50}, {"name": "da da ant ", "type": "B", "health": 100, "power": 60, "sAttackPwr": 10, "speed": 60}, {"name": "el ing kar ", "type": "B", "health": 100, "power": 70, "sAttackPwr": 20, "speed": 50}]

我希望能够以列表的形式将其读回程序，最好将它们实例化为具有该列表中字符属性值的对象。

这是我将文件读回程序的当前方式：

def openCharsToFile(gameChars):
    with open("characterFile.json") as read_file:
        y = json.load(read_file)
        for x in y:
            gameChars.insert[x, y]

        for z in gameChars:
            print(z.getStats())

但是当我运行该程序时，出现以下错误：

Traceback (most recent call last):
    File "rpgProblemSolving.py", line 342, in <module>
        main()
    File "rpgProblemSolving.py",  line 338, in main
        openCharsToFile(gameChars)
    File "rpgProblemSolving.py", line 305, in openCharsToFile
        gameChars.insert[x, y]
TypeError: 'builtin_function_or_method' object is not subscriptable

如果有人有什么建议，将不胜感激

Answer 1

我相信您只是想将字符添加到现有字符中，所以请使用append。您的错误是您拥有[x, y]而不是(x, y)，但是即使我们解决了这一问题，因为insert的第一个参数（x）是列表（{{1} }）插入gameChars的位置，这是没有意义的，因为y是您的角色，x是您的字典。

由于y仅包含字典形式的字符，因此打印字符print(z.getStats())的部分也不起作用，当然没有gameChars这样的方法。

getStats()

获取对象的JSON列表并将其放入python列表

1 个答案: