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While keys are strings, the mapped type of objects and the element type of arrays is the aforementioned type <<ref_value>> which can hold any JSON element, as seen in the previous assignments. Instead of building the JSON document using a series of function calls, we can build it in one statement using an initializer list:
While keys are strings, the mapped type of objects and the element type of arrays is the aforementioned type <<ref_value>> which can hold any JSON element, as seen in the previous assignments. Instead of building the JSON document using a series of function calls, we can build it in one statement using an initializer list:尽管键是字符串，但对象的映射类型和数组的元素类型均为前述的 &lt;<ref_value>&gt; 类型，它可以保存任意 JSON 元素，如前文赋值所示。除了通过一系列函数调用构建 JSON 文档外，我们还可以使用初始化列表在一条语句中完成构建：</ref_value>
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In this library the types <<ref_array>>, <<ref_object>>, and <<ref_string>> hold JSON arrays, objects, and strings respectively while the type <<ref_value>> is a special variant which can hold any JSON element. Here we construct an empty object and then insert the elements above:
In this library the types <在本库中，类型 &lt;<ref_array>>, <&gt;、&lt;<ref_object>>, and <&gt; 和 &lt;<ref_string>> hold JSON arrays, objects, and strings respectively while the type <<ref_value>> is a special variant which can hold any JSON element. Here we construct an empty object and then insert the elements above:&gt; 分别用于表示 JSON 数组、对象和字符串，而类型 &lt;<ref_value>&gt; 是一种特殊的变体（variant），可容纳任意 JSON 元素。以下示例首先构造一个空对象，然后插入上述元素：</ref_value></ref_string></ref_object></ref_array>
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Say you want to recreate this JSON object in a container:
Say you want to recreate this JSON object in a container:假设您要在容器中重建一下 JSON 对象：
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Values
Values值
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In order to link your program you will need to link with a built library. Alternatively you can use the header-only configuration simply by including this header file in any __one__ of your new or existing source files:
In order to link your program you will need to link with a built library. Alternatively you can use the header-only configuration simply by including this header file in any __one__ of your new or existing source files:为链接程序，您需要链接已构建的库。或者，您可以使用仅需头文件（header-only）的配置，只需在任意__一个__新建或现有源文件中包含此头文件：
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= Quick Look Here we highlight important features through example code to help convey the style of the interface. We begin by including the library header file which brings all the symbols into scope. Alternatively, individual headers may be included to obtain the declarations for specific types:
= Quick Look Here we highlight important features through example code to help convey the style of the interface. We begin by including the library header file which brings all the symbols into scope. Alternatively, individual headers may be included to obtain the declarations for specific types:快速浏览 这里我们通过示例代码重点介绍重要特性，以帮助理解接口风格。首先包含库头文件，该文件将所有符号引入作用域；或者，也可以包含单独的头文件以获取特定类型的声明：
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Processed 6 strings from the uploaded files (skipped: 0, not found: 0, updated: 6).
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:leveloffset: -1
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include::quick_look.adoc[] include::dom/overview.adoc[] include::allocators/overview.adoc[] include::io/overview.adoc[] include::conversion/overview.adoc[] include::examples.adoc[] include::faq.adoc[] include::benchmarks.adoc[] include::comparison.adoc[] include::reference.adoc[] include::../../CHANGELOG.adoc[]
include::quick_look.adoc[] include::dom/overview.adoc[] include::allocators/overview.adoc[] include::io/overview.adoc[] include::conversion/overview.adoc[] include::examples.adoc[] include::faq.adoc[] include::benchmarks.adoc[] include::comparison.adoc[] include::reference.adoc[] include::../../CHANGELOG.adoc[]
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:leveloffset: +1
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include::../../README.adoc[]
include::../../README.adoc[]
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include::definitions.adoc[]
include::definitions.adoc[]
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= Boost.JSON (C) 2019--2020 Vinnie Falco; (C) 2020 Krystian Stasiowski; (C) 2022 Dmitry Arkhipov :idprefix: :sectanchors: :toclevels: 2 :toc: left :pagelevels: 2 :source-highlighter: rouge :source-language: c++
= Boost.JSON (C) 2019--2020 Vinnie Falco; (C) 2020 Krystian Stasiowski; (C) 2022 Dmitry Arkhipov :idprefix: :sectanchors: :toclevels: 2 :toc: left :pagelevels: 2 :source-highlighter: rouge :source-language: c++
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As with the parser, the serializer may be reused by calling <<ref_serializer_reset>>. This sets up the object to serialize a new instance and retains previously allocated memory. This can result in performance improvements when multiple variables are serialized.
As with the parser, the 与解析器类似，序列化器可通过调用 &lt;<ref_serializer may be _reused by calling <<ref_serializer_reset>>. This sets up the object to serialize a new instance and retains previously allocated memory. This can result in performance improvements when multiple variables are serialized.t>&gt; 重复使用。这会将对象重置为序列化新实例的状态，并保留先前分配的内存，从而在序列化多个变量时提升性能。</ref_serializer_reset>
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In situations where serializing a <<ref_value>> in its entirety is inefficient or even impossible, <<ref_serializer>> can be used to serialize a <<ref_value>> incrementally. This may be done for a variety of reasons, such as to avoid buffering the entire output, or to ensure that a fixed amount of work is performed in each cycle. Instances of <<ref_serializer>> maintain an output state using internal dynamically allocated structures, with an interface to retrieve successive buffers of the serialized output into a caller provided buffer. Here is an example, demonstrating how <<ref_operator_lt_lt>> may be implemented using a <<ref_serializer>>:
In situations where serializing a <<ref_value>> in its entirety is inefficient or even impossible, <<ref_serializer>> can be used to serialize a <<ref_value>> incrementally. This may be done for a variety of reasons, such as to avoid buffering the entire output, or to ensure that a fixed amount of work is performed in each cycle. Instances of <<ref_serializer>> maintain an output state using internal dynamically allocated structures, with an interface to retrieve successive buffers of the serialized output into a caller provided buffer. Here is an example, demonstrating how <<ref_operator_lt_lt>> may be implemented using a <<在完整序列化一个 &lt;<ref_value>&gt; 效率低下甚至不可行的情况下，可使用 &lt;<ref_serializer>&gt; 对其进行逐步序列化。这样做有多种原因，例如避免缓冲整个输出，或确保每个周期执行固定量的工作。&lt;<ref_serializer>&gt; 的实例通过内部动态分配的结构维护输出状态，并提供接口，将序列化输出的连续缓冲区写入调用方提供的缓冲区中。以下示例展示了如何使用 &lt;<ref_serializer>&gt; 来实现 &lt;<ref_operator_lt_lt>&gt;：</ref_operator_lt_lt></ref_serializer></ref_serializer></ref_serializer></ref_value>:
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The <<ref_serialize>> function converts a <<ref_value>> into a {std_string}:
The <&lt;<ref_serialize>> function converts a <&gt; 函数将一个 &lt;<ref_value>> into a&gt; 转换为 {std_string}:</ref_value></ref_serialize>
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To facilitate debugging and ease of output, library container types may be written to standard output streams using the stream operator:
To facilitate debugging and ease of output, library container types may be written to standard output streams using the stream operator:为便于调试和输出，库中的容器类型可通过流操作符写入标准输出流：
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instances of <<ref_value>>, <<ref_array>>, <<ref_object>>, or <<ref_string>>. |===
instances of <&lt;<ref_value>>, <&gt;、&lt;<ref_array>>, <&gt;、&lt;<ref_object>>, or <&gt; 或 &lt;<ref_string>>. |===&gt; 的实例。 |===</ref_string></ref_object></ref_array></ref_value>
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A stateful object which may be used to efficiently serialize one or more
A stateful object which may be used to efficiently serialize one or more一个有状态的对象，可用于高效地序列化一个或多个
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