Boost Json Translation (zh_Hans)/Doc / Pages / Conversion / Overview (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: The function template <<ref_value_from>> provides an interface to construct a …

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Key	English	Chinese (Simplified Han script)
	= Value Conversion While the <<ref_value>> container makes it easy to create ad-hoc structures, often it is necessary to convert between JSON and user-defined types or types from the standard library.	= 值转换尽管 <<ref_value>> 容器便于创建临时结构，但通常仍需在 JSON 与用户自定义类型或标准库类型之间进行转换。</ref_value>
	The function template <<ref_value_from>> provides an interface to construct a <<ref_value>> from a type `T`. The function template <<ref_value_to>> converts in the opposite direction, from a type `T` to <<ref_value>>. Both support a wide variety of different https://en.cppreference.com/w/cpp/language/types[fundamental types], such as `int` or `double`, standard library types, such as `std::string` or `std::vector<T>`, and can be extended to support user-defined types.	函数模板 <<ref_value_from>> 提供了从类型 `T` 构造 <<ref_value>> 的接口。函数模板 <<ref_value_to>> 则执行相反方向的转换，从类型 `T` 转换为 <<ref_value>>。两者均支持多种不同的 https://en.cppreference.com/w/cpp/language/types[基础类型]（如 `int` 或 `double`）、标准库类型（如 `std::string` 或 `std::vector<t>`），并可扩展以支持用户定义类型。</t></ref_value></ref_value_to></ref_value></ref_value_from>
	For the type `T`, the appropriate conversion approach is chosen from the following list of categories. The first matching category is selected.	对于类型 `T`，将从以下类别列表中选择合适的转换方式，并采用第一个匹配的类别。
	Category of T	Category of T
	Comment	Comment
	`value_from` behavior	`value_from` behavior
	`value_to` behavior	`value_to` behavior
	Custom conversion.	自定义行为。
:36	Custom behavior.	自定义行为。
	Boost.JSON container.	Boost.JSON 容器
:36	The result is equal to the input value.	结果等于输入值。
	`bool`	结果等于输入值。
	https://en.cppreference.com/w/cpp/types/is_arithmetic[Arithmetic type]	https://en.cppreference.com/w/cpp/types/is_arithmetic[Arithmetic type]
	a\| The result is a number equal to input and has the type	a\| 结果是一个与输入值相等的数字，并且其类型为
	`std::int64_t`, if `T` is a signed integer'; or	若 `T` 为有符号整数，则为 `std::int64_t`；或
	`std::uint64_t`, if `T` is an unsigned integer; or	若 `T` 为无符号整数，则为 `std::uint64_t`；或
	`double` otherwise.	否则为 `double`。

	English	Chinese (Simplified Han script)	Actions
	a <<ref_string>>, containing its name. Otherwise it's equal to the input value converted to its underlying type. \|The result is the described enumerator, corresponding to the input <<ref_string>>.	一个包含该枚举项名称的 <<ref_string>>；否则，结果等同于将输入值转换为其底层类型后的值。</ref_string>
	Type satisfying <<ref_is_path_like>>.	满足 <<ref_is_path_like>> 的类型。</ref_is_path_like>
	`std::filesystem::path` and similar types, e.g. `boost::filesystem::path`.	`std::filesystem::path` 及类似类型，例如 `boost::filesystem::path`。
	The result is constructed from two pointers to `const char`.	结果由两个指向 `const char` 的指针构造而成。
	For composite types (sequences, tuples, described classes, etc.) conversion of contained objects is applied recursively. For example:	对于复合类型（如序列、元组、已描述的类等），对其所包含对象的转换会递归应用。例如：
	A sequence of `char`s, e.g. `std::string`.	`char` 序列，例如 `std::string`。
	The result is a <<ref_string>>.	结果为 <<ref_string>>。</ref_string>
	The result is constructed from a <<ref_string_view>>.	结果由 <<ref_string_view>> 构造。</ref_string_view>
	Type satisfying <<ref_is_variant_like>>.	满足 <<ref_is_variant_like>> 的类型。</ref_is_variant_like>
	`std::variant` and similar types, e.g. `boost::variant2::variant`.	`std::variant` 及类似类型，例如 `boost::variant2::variant`。
	alternative. \|The result holds the first alternative for which a conversion succeeds.	a\| 结果为一个数值，等于输入值且类型为：
	Type satisfying <<ref_is_optional_like>>	Type satisfying <<ref_is_optional_like>></ref_is_optional_like>
	If the input value is empty, the result is a `null`. Otherwise it is	若输入值为空，则结果为 `null`；否则该结果
	= Value Conversion While the <<ref_value>> container makes it easy to create ad-hoc structures, often it is necessary to convert between JSON and user-defined types or types from the standard library.	= 值转换尽管 <<ref_value>> 容器便于创建临时结构，但通常仍需在 JSON 与用户自定义类型或标准库类型之间进行转换。</ref_value>
	Category of T	Category of T
	The function template <<ref_value_from>> provides an interface to construct a <<ref_value>> from a type `T`. The function template <<ref_value_to>> converts in the opposite direction, from a type `T` to <<ref_value>>. Both support a wide variety of different https://en.cppreference.com/w/cpp/language/types[fundamental types], such as `int` or `double`, standard library types, such as `std::string` or `std::vector<T>`, and can be extended to support user-defined types.	函数模板 <<ref_value_from>> 提供了从类型 `T` 构造 <<ref_value>> 的接口。函数模板 <<ref_value_to>> 则执行相反方向的转换，从类型 `T` 转换为 <<ref_value>>。两者均支持多种不同的 https://en.cppreference.com/w/cpp/language/types[基础类型]（如 `int` 或 `double`）、标准库类型（如 `std::string` 或 `std::vector<t>`），并可扩展以支持用户定义类型。</t></ref_value></ref_value_to></ref_value></ref_value_from>
	For the type `T`, the appropriate conversion approach is chosen from the following list of categories. The first matching category is selected.	对于类型 `T`，将从以下类别列表中选择合适的转换方式，并采用第一个匹配的类别。
	Comment	Comment
	`value_from` behavior	`value_from` behavior
	`value_to` behavior	`value_to` behavior
	Custom conversion.	自定义行为。
	Boost.JSON container.	Boost.JSON 容器
	`bool`	结果等于输入值。
	https://en.cppreference.com/w/cpp/types/is_arithmetic[Arithmetic type]	https://en.cppreference.com/w/cpp/types/is_arithmetic[Arithmetic type]
	a\| The result is a number equal to input and has the type	a\| 结果是一个与输入值相等的数字，并且其类型为
	`std::int64_t`, if `T` is a signed integer'; or	若 `T` 为有符号整数，则为 `std::int64_t`；或
	`std::uint64_t`, if `T` is an unsigned integer; or	若 `T` 为无符号整数，则为 `std::uint64_t`；或
	`double` otherwise.	否则为 `double`。
	The result is created via <<ref_value_to_number>>.	结果通过 <<ref_value_to_number>> 创建。</ref_value_to_number>
	Type satisfying <<ref_is_null_like>>	满足 <<ref_is_null_like>> 的类型</ref_is_null_like>

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Chinese (Simplified Han script) 318 characters editedCurrent translationState: Translated

The function template <<ref_value_from>> provides an interface to construct a <<ref_value>> from a type `T`. The function template <<ref_value_to>> converts in the opposite direction, from a type `T` to <<ref_value>>. Both support a wide variety of different函数模板 <<ref_value_from>> 提供了从类型 `T` 构造 <<ref_value>> 的接口。函数模板 <<ref_value_to>> 则执行相反方向的转换，从类型 `T` 转换为 <<ref_value>>。两者均支持多种不同的 https://en.cppreference.com/w/cpp/language/types[~~fundamental types], such as~~基础类型]（如 `int` or或 `double`~~, standard library types, such as~~）、标准库类型（如 `std::string` or或 `std::vector<~~T>`, and can be extended to support user-defined types.~~t>`），并可扩展以支持用户定义类型。</t></ref_value></ref_value_to></ref_value></ref_value_from>

06/05/2026

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Chinese (Simplified Han script) 472 characters editedPrevious translationState: Needs editing (Needs rewriting)

06/05/2026

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