UniversalObject 万用对象
- 它是什么：一个“万用/黑洞对象”。访问任意属性、调用任意方法、以任意参数调用，都不会报错，并且始终返回它自身。
- 核心机制：
__getattribute__：访问任意属性时直接返回对象自身。__call__：把实例当函数调用时也返回对象自身。
- 直接效果：可无限链式调用，结果始终是原对象本身。
class UniversalObject(object):
""" 万用对象 """
def __init__(self):
pass
def __getattribute__(self, __name):
return self
def __call__(self, *args, **kwds):
return self行为示例
u = UniversalObject()
result = u.any.attr.or_method(1, x=2).more.calls
print(result is u) # True典型用途
- 测试替身/Mock：替代复杂依赖，避免
AttributeError/TypeError，便于聚焦核心逻辑。 - 空对象模式：替代
None，让调用方无需四处写空判断。
functools.lru_cache 结果缓存
- 为纯函数结果做缓存，避免重复计算；
maxsize控制缓存大小，typed=True区分不同类型的同值参数。
from functools import lru_cache
@lru_cache(maxsize=128)
def fib(n: int) -> int:
return n if n < 2 else fib(n - 1) + fib(n - 2)
print(fib(6))上述 lru_cache 代码的工作过程如下：
- 当你第一次调用
fib(n)时，函数会正常递归计算斐波那契数列，并把每个参数和结果存入缓存。 - 如果后续再次调用
fib(n)，且参数n之前已经算过，直接从缓存返回结果，不再递归计算。 maxsize=128表示最多缓存 128 个不同参数的结果。
例如，fib(6) 实际只会递归计算一次，后续再调用 fib(6) 或更小的参数时，都会直接命中缓存，速度极快。
functools.singledispatch 单分派泛函数
- 基于“第一个参数类型”分派到相应实现；可在任意模块延后注册新类型的实现。
from functools import singledispatch
@singledispatch
def to_str(x) -> str:
return f"obj:{x!r}"
@to_str.register
def _(x: int) -> str:
return f"int:{x}"
@to_str.register
def _(x: list) -> str:
return "list:" + ",".join(map(str, x))
print(to_str(42)) # int:42
print(to_str([1,2,3])) # list:1,2,3globals() C/S架构RPC传输
期望效果
服务端RPC传递以下代码
ServerSystems.ClientRpc.RequestToClient(convert_operation(COLLECTION(
GLOBALS()["clientApi"].SetHudChatStackVisible(False),
GLOBALS()["clientApi"].RegisterUIAnimations(CommonUI.DEFINITION, True),
GLOBALS()["clientApi"].RegisterUI(CommonUI.NAMESPACE, CommonUI.KEY, GLOBALS()["custom_ui_class_path"], CommonUI.SCREEN_DEF),
GLOBALS().setitem(CommonUI.SCREEN_DEF, GLOBALS()["clientApi"].CreateUI(CommonUI.NAMESPACE, CommonUI.KEY, {"isHud": 1})),
GLOBALS()[CommonUI.SCREEN_DEF].setattr("GameComponent", GLOBALS()["clientApi"].GetEngineCompFactory().CreateGame(LevelId)),
GLOBALS()[CommonUI.SCREEN_DEF].setattr("AddChatMessage", FUNCTION(COLLECTION(
GLOBALS()[CommonUI.SCREEN_DEF].Clone("/templates/chat_item", "/chat_messages", LOCALS()["args"][0]),
GLOBALS()[CommonUI.SCREEN_DEF].GetBaseUIControl("/chat_messages/" + LOCALS()["args"][0] + "/anchor/content").asLabel().SetText(LOCALS()["args"][1]),
GLOBALS()[CommonUI.SCREEN_DEF].GameComponent.AddTimer(LOCALS()["args"][2], GLOBALS()[CommonUI.SCREEN_DEF].RemoveComponent, "/chat_messages/" + LOCALS()["args"][0], "/chat_messages")
))),
GLOBALS()[CommonUI.SCREEN_DEF].setattr("AddDeathMessage", FUNCTION(COLLECTION(
GLOBALS()[CommonUI.SCREEN_DEF].Clone("/templates/death_item", "/death_messages", LOCALS()["args"][0]),
GLOBALS()[CommonUI.SCREEN_DEF].GetBaseUIControl("/death_messages/" + LOCALS()["args"][0] + "/anchor/content").asLabel().SetText(LOCALS()["args"][1]),
GLOBALS()[CommonUI.SCREEN_DEF].GetBaseUIControl("/death_messages/" + LOCALS()["args"][0] + "/anchor/outline").SetVisible(LOCALS()["args"][2]),
GLOBALS()[CommonUI.SCREEN_DEF].GameComponent.AddTimer(LOCALS()["args"][3], GLOBALS()[CommonUI.SCREEN_DEF].RemoveComponent,"/death_messages/" + LOCALS()["args"][0], "/death_messages")
)))
)), target)对应的客户端等价运行如下代码
clientApi.SetHudChatStackVisible(False)
clientApi.RegisterUIAnimations(CommonUI.DEFINITION, True)
clientApi.RegisterUI(CommonUI.NAMESPACE, CommonUI.KEY, GLOBALS()["custom_ui_class_path"], CommonUI.SCREEN_DEF)
CommonUI.SCREEN_DEF = clientApi.CreateUI(CommonUI.NAMESPACE, CommonUI.KEY, {"isHud": 1})
CommonUI.SCREEN_DEF.GameComponent = clientApi.GetEngineCompFactory().CreateGame(LevelId)
def AddChatMessage(id_, text, ttl):
path = "/chat_messages/" + str(id_)
CommonUI.SCREEN_DEF.Clone("/templates/chat_item", "/chat_messages", id_)
CommonUI.SCREEN_DEF.GetBaseUIControl(path + "/anchor/content").asLabel().SetText(text)
CommonUI.SCREEN_DEF.GameComponent.AddTimer(ttl, CommonUI.SCREEN_DEF.RemoveComponent, path, "/chat_messages")
def AddDeathMessage(id_, text, outlined, ttl):
path = "/death_messages/" + str(id_)
CommonUI.SCREEN_DEF.Clone("/templates/death_item", "/death_messages", id_)
CommonUI.SCREEN_DEF.GetBaseUIControl(path + "/anchor/content").asLabel().SetText(text)
CommonUI.SCREEN_DEF.GetBaseUIControl(path + "/anchor/outline").SetVisible(outlined)
CommonUI.SCREEN_DEF.GameComponent.AddTimer(ttl, CommonUI.SCREEN_DEF.RemoveComponent, path, "/death_messages")
CommonUI.SCREEN_DEF.AddChatMessage = AddChatMessage
CommonUI.SCREEN_DEF.AddDeathMessage = AddDeathMessage Thanks for reading!