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library/functions.po

Lines changed: 18 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2279,6 +2279,9 @@ msgid ""
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"precision, see :func:`math.fsum`\\. To concatenate a series of iterables, "
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"consider using :func:`itertools.chain`."
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msgstr ""
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"对某些用例来说,存在 :func:`sum` 的更好替代。 拼接字符串序列的更好更快方式是调用 ``''.join(sequence)``。 "
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"要以扩展精度对浮点值求和,请参阅 :func:`math.fsum`。 要拼接一系列可迭代对象,请考虑使用 "
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":func:`itertools.chain`。"
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#: ../../library/functions.rst:1494
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msgid ""
@@ -2287,6 +2290,8 @@ msgid ""
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"been overridden in a class. The search order is same as that used by "
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":func:`getattr` except that the *type* itself is skipped."
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msgstr ""
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"返回一个代理对象,它会将方法调用委托给 *type* 指定的父类或兄弟类。 这对于访问已在类中被重载的继承方法很有用。 搜索顺序与 "
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":func:`getattr` 所使用的相同,只是 *type* 指定的类型本身会被跳过。"
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#: ../../library/functions.rst:1499
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msgid ""
@@ -2295,6 +2300,8 @@ msgid ""
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" attribute is dynamic and can change whenever the inheritance hierarchy is "
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"updated."
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msgstr ""
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"*type* 的 :attr:`~class.__mro__` 属性列出了 :func:`getattr` 和 :func:`super` "
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"所使用的方法解析顺序。 该属性是动态的,可以在继承层级结构更新的时候任意改变。"
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#: ../../library/functions.rst:1504
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msgid ""
@@ -2303,6 +2310,8 @@ msgid ""
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"If the second argument is a type, ``issubclass(type2, type)`` must be true "
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"(this is useful for classmethods)."
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msgstr ""
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"如果省略第二个参数,则返回的超类对象是未绑定的。 如果第二个参数为一个对象,则 ``isinstance(obj, type)`` 必须为真值。 "
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"如果第二个参数为一个类型,则 ``issubclass(type2, type)`` 必须为真值(这适用于类方法)。"
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#: ../../library/functions.rst:1509
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msgid ""
@@ -2311,6 +2320,8 @@ msgid ""
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"naming them explicitly, thus making the code more maintainable. This use "
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"closely parallels the use of *super* in other programming languages."
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msgstr ""
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"*super* 有两个典型用例。 在具有单继承的类层级结构中,*super* 可用来引用父类而不必显式地指定它们的名称,从而令代码更易维护。 "
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"这种用法与其他编程语言中 *super* 的用法非常相似。"
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#: ../../library/functions.rst:1514
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msgid ""
@@ -2324,10 +2335,13 @@ msgid ""
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"order adapts to changes in the class hierarchy, and because that order can "
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"include sibling classes that are unknown prior to runtime)."
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msgstr ""
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"第二个用例是在动态执行环境中支持协作多重继承。 此用例为 Python 所独有,在静态编译语言或仅支持单继承的语言中是不存在的。 "
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"这使得实现“菱形图”成为可能,在这时会有多个基类实现相同的方法。 "
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"好的设计强制要求这种方法在每个情况下具有相同的调用签名(因为调用顺序是在运行时确定的,也因为该顺序要适应类层级结构的更改,还因为该顺序可能包含在运行时之前未知的兄弟类)。"
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#: ../../library/functions.rst:1524
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msgid "For both use cases, a typical superclass call looks like this::"
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msgstr ""
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msgstr "对于以上两个用例,典型的超类调用看起来是这样的::"
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#: ../../library/functions.rst:1531
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msgid ""
@@ -2338,6 +2352,9 @@ msgid ""
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"inheritance. Accordingly, :func:`super` is undefined for implicit lookups "
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"using statements or operators such as ``super()[name]``."
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msgstr ""
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"请注意 :func:`super` 是作为显式加点属性查找的绑定过程的一部分来实现的,例如 ``super().__getitem__(name)``。"
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" 它做到这一点是通过实现自己的 :meth:`__getattribute__` 方法,这样就能以可预测的顺序搜索类,并且支持协作多重继承。 "
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"对应地,:func:`super` 在像 ``super()[name]`` 这样使用语句或操作符进行隐式查找时则未被定义。"
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#: ../../library/functions.rst:1538
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msgid ""

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