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‎faq/programming.po‎

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# Siyuan Xu <[email protected]>, 2019
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# Meng Du <[email protected]>, 2019
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# ppcfish <[email protected]>, 2019
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# Freesand Leo <[email protected]>, 2020
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# Freesand Leo <[email protected]>, 2021
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#
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#, fuzzy
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msgid ""
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2021-04-04 05:56+0000\n"
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"PO-Revision-Date: 2017-02-16 17:43+0000\n"
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"Last-Translator: Freesand Leo <[email protected]>, 2020\n"
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"Last-Translator: Freesand Leo <[email protected]>, 2021\n"
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"Language-Team: Chinese (China) (https://www.transifex.com/python-doc/teams/5390/zh_CN/)\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=UTF-8\n"
@@ -2085,13 +2085,13 @@ msgstr ""
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#: ../../faq/programming.rst:1706
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msgid "When can I rely on identity tests with the *is* operator?"
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msgstr ""
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msgstr "我可以在在何时通过 *is* 运算符进行标识号检测？"
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#: ../../faq/programming.rst:1708
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msgid ""
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"The ``is`` operator tests for object identity. The test ``a is b`` is "
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"equivalent to ``id(a) == id(b)``."
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msgstr ""
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msgstr "``is`` 运算符可检测对象的标识号。 检测 ``a is b`` 等价于 ``id(a) == id(b)``。"
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#: ../../faq/programming.rst:1711
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msgid ""
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" usually faster than equality tests. And unlike equality tests, identity "
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"tests are guaranteed to return a boolean ``True`` or ``False``."
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msgstr ""
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"标识号检测最重要的特性是一个对象自身的标识号总是相同，``a is a`` 总是返回 ``True``。 标识号检测通常比相等性检测更快。 "
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"并且不同于相等性检测，标识号检测会保证返回一个布尔值 ``True`` 或 ``False``。"
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#: ../../faq/programming.rst:1716
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msgid ""
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"However, identity tests can *only* be substituted for equality tests when "
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"object identity is assured. Generally, there are three circumstances where "
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"identity is guaranteed:"
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msgstr ""
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msgstr "但是，标识号检测 *只能* 在确定对象标识的场景下替代相等性检测。 一般来说，在以下三种情况下对象标识是确定的:"
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#: ../../faq/programming.rst:1720
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msgid ""
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"1) Assignments create new names but do not change object identity. After "
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"the assignment ``new = old``, it is guaranteed that ``new is old``."
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msgstr ""
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msgstr "1) 赋值创建了新的名称但没有改变对象标识。 在赋值操作 ``new = old`` 之后，可以保证 ``new is old``。"
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#: ../../faq/programming.rst:1723
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msgid ""
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"2) Putting an object in a container that stores object references does not "
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"change object identity. After the list assignment ``s[0] = x``, it is "
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"guaranteed that ``s[0] is x``."
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msgstr ""
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"2) 将一个对象放入存储对象引用的容器不会改变对象标识。 在列表赋值操作 ``s[0] = x`` 之后，可以保证 ``s[0] is x``。"
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#: ../../faq/programming.rst:1727
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msgid ""
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"3) If an object is a singleton, it means that only one instance of that "
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"object can exist. After the assignments ``a = None`` and ``b = None``, it "
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"is guaranteed that ``a is b`` because ``None`` is a singleton."
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msgstr ""
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"3) 如果对象是一个单例，意味着该对象只能存在一个实例。 在赋值操作 ``a = None`` 和 ``b = None`` 之后，可以保证 ``a "
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"is b``，因为 ``None`` 是单例对象。"
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#: ../../faq/programming.rst:1731
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msgid ""
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"check constants such as :class:`int` and :class:`str` which aren't "
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"guaranteed to be singletons::"
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msgstr ""
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"在其他大多数情况下，都不建议使用标识号检测而应使用相等性检测。 特别地，标识号检测不应被用于检测常量值例如 :class:`int` 和 "
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":class:`str`，因为它们并不保证是单例对象::"
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#: ../../faq/programming.rst:1748
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msgid "Likewise, new instances of mutable containers are never identical::"
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msgstr ""
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msgstr "同样地，可变容器的新实例标识号一定不会相同::"
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#: ../../faq/programming.rst:1755
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msgid ""
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"In the standard library code, you will see several common patterns for "
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"correctly using identity tests:"
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msgstr ""
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msgstr "在标准库代码中，你将看到一些正确使用标识号检测的常见范式:"
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#: ../../faq/programming.rst:1758
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msgid ""
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"confusion with other objects that may have boolean values that evaluate to "
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"false."
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msgstr ""
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"1) 如 :pep:`8` 所推荐的，标识号检测是 ``None`` 值检测的推荐方式。 "
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"在代码中这样的写法看起来像是自然的英文并可以避免与其他可能具有会被解析为假值的布尔值的对象相混淆。"
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#: ../../faq/programming.rst:1762
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msgid ""

‎howto/descriptor.po‎

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@@ -256,7 +256,7 @@ msgstr "现在，新类会记录对 *name* 和 *age* 二者的访问："
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#: ../../howto/descriptor.rst:284
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msgid "The two *Person* instances contain only the private names:"
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msgstr ""
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msgstr "这两个 *Person* 实例仅包含私有名称:"
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#: ../../howto/descriptor.rst:295
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msgid "Closing thoughts"
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#: ../../howto/descriptor.rst:1167
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msgid "Kinds of methods"
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msgstr "方法的种类"
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#: ../../howto/descriptor.rst:1169
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msgid ""

‎tutorial/datastructures.po‎

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" whether two objects are really the same object. All comparison operators "
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"have the same priority, which is lower than that of all numerical operators."
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msgstr ""
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"比较运算符 ``in`` 和 ``not in`` 校验一个值是否在（或不在）一个序列里。 运算符 ``is`` 和 ``is not`` "
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"比较两个对象是否确定为同一个对象。 所有比较运算符都有相同的优先级，此优先级低于所有数值运算符。"
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#: ../../tutorial/datastructures.rst:667
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msgid ""

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