[po] auto sync bot

zhsj · zhsj · commit 171bb066b14f · 2018-08-04T16:27:21.000+08:00
diff --git a/library/weakref.po b/library/weakref.po
@@ -72,6 +72,12 @@ msgid ""
 "collection can reclaim the object, and its corresponding entries in weak "
 "mappings are simply deleted."
 msgstr ""
+"例如，如果您有许多大型二进制图像对象，则可能希望将名称与每个对象关联起来。如果您使用Python字典将名称映射到图像，或将图像映射到名称，则图像对象将保持活动状态，因为它们在字典中显示为值或键。"
+" :mod:`weakref` 模块提供的 :class:`WeakKeyDictionary` 和 "
+":class:`WeakValueDictionary` "
+"类可以替代Python字典，使用弱引用来构造映射，这些映射不会仅仅因为它们出现在映射对象中而使对象保持存活。例如，如果一个图像对象是 "
+":class:`WeakValueDictionary` "
+"中的值，那么当对该图像对象的剩余引用是弱映射对象所持有的弱引用时，垃圾回收可以回收该对象并将其在弱映射对象中相应的条目删除。"
 
 #: ../../library/weakref.rst:48
 msgid ""
@@ -82,6 +88,9 @@ msgid ""
 ":class:`set` interface, but keeps weak references to its elements, just like"
 " a :class:`WeakKeyDictionary` does."
 msgstr ""
+":class:`WeakKeyDictionary` 和 :class:`WeakValueDictionary` "
+"在它们的实现中使用弱引用，在弱引用上设置回调函数，当键或值被垃圾回收回收时通知弱字典。 :class:`WeakSet` 实现了 "
+":class:`set` 接口，但像 :class:`WeakKeyDictionary` 一样，只持有其元素的弱引用。`"
 
 #: ../../library/weakref.rst:55
 msgid ""
@@ -91,6 +100,8 @@ msgid ""
 "the module automatically ensures that the finalizer remains alive until the "
 "object is collected."
 msgstr ""
+":class:`finalize` "
+"提供了注册一个对象被垃圾收集时要调用的清理函数的方式。这比在原始弱引用上设置回调函数更简单，因为模块会自动确保对象被回收前终结器一直保持存活。"
 
 #: ../../library/weakref.rst:61
 msgid ""
@@ -99,6 +110,8 @@ msgid ""
 "your own weak references directly.  The low-level machinery is exposed by "
 "the :mod:`weakref` module for the benefit of advanced uses."
 msgstr ""
+"这些弱容器类型之一或者 :class:`finalize` 就是大多数程序所需要的 - 通常不需要直接创建自己的弱引用。:mod:`weakref` "
+"模块暴露了低级机制，以便于高级用途。"
 
 #: ../../library/weakref.rst:66
 msgid ""
@@ -108,29 +121,34 @@ msgid ""
 ":term:`generator`\\s, type objects, sockets, arrays, deques, regular "
 "expression pattern objects, and code objects."
 msgstr ""
+"并非所有对象都可以被弱引用；那些可以包含类实例的对象，用Python编写的函数（不是用C语言编写的），实例方法，集合，frozensets，某些 "
+":term:`file objects <file object>` ， :term:`生成器` "
+"，类型对象，套接字，数组，双端队列，正则表达式模式对象和代码对象。"
 
 #: ../../library/weakref.rst:72
 msgid "Added support for thread.lock, threading.Lock, and code objects."
-msgstr ""
+msgstr "添加了对thread.lock，threading.Lock和代码对象的支持。"
 
 #: ../../library/weakref.rst:75
 msgid ""
 "Several built-in types such as :class:`list` and :class:`dict` do not "
 "directly support weak references but can add support through subclassing::"
-msgstr ""
+msgstr "几个内建类型如 :class:`list` 和 :class:`dict` 不直接支持弱引用，但可以通过子类化添加支持::"
 
 #: ../../library/weakref.rst:83
 msgid ""
 "Other built-in types such as :class:`tuple` and :class:`int` do not support "
 "weak references even when subclassed (This is an implementation detail and "
 "may be different across various Python implementations.)."
 msgstr ""
+"其他内建类型如 :class:`tuple` 和 :class:`int` "
+"即使在子类化时也不支持弱引用（这是一个实现细节，在各种Python实现中可能不同）。"
 
 #: ../../library/weakref.rst:87
 msgid ""
 "Extension types can easily be made to support weak references; see :ref"
 ":`weakref-support`."
-msgstr ""
+msgstr " 可以轻松地使用扩展类型来支持弱引用；参见 :ref:`weakref-support`。"
 
 #: ../../library/weakref.rst:93
 msgid ""
@@ -143,6 +161,9 @@ msgid ""
 "object will be passed as the only parameter to the callback; the referent "
 "will no longer be available."
 msgstr ""
+"返回对 *对象* 的弱引用。如果原始对象仍然存活，则可以通过调用引用对象来检索原始对象；如果引用的原始对象不再存在，则调用引用对象将得到 "
+":const:`None` 。如果提供了 *回调* 而且值不是 :const:`None` "
+"，并且返回的弱引用对象仍然存活，则在对象即将终结时将调用回调;弱引用对象将作为回调的唯一参数传递；指示物将不再可用。"
 
 #: ../../library/weakref.rst:101
 msgid ""
