Boost Json Translation (zh_Hans)/Doc / Pages / Dom / Value (adoc) — Chinese (Simplified Han script) @ Boost-Weblate: <<ref_value_as

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Key	English	Chinese (Simplified Han script)
	<<ref_value_get_int64>>	<<ref_value_get_int64>></ref_value_get_int64>
:95	<<ref_kind,`kind::uint64`>>	<<ref_kind,`kind::uint64`>></ref_kind,`kind::uint64`>
	https://en.cppreference.com/w/cpp/types/integer[`std::uint64_t`]	https://en.cppreference.com/w/cpp/types/integer[`std::uint64_t`]
	<<ref_value_emplace_uint64>>	<<ref_value_emplace_uint64>></ref_value_emplace_uint64>
	<<ref_value_is_uint64>>	<<ref_value_is_uint64>></ref_value_is_uint64>
	<<ref_value_if_uint64>>	<<ref_value_if_uint64>></ref_value_if_uint64>
	<<ref_value_try_as_uint64>>	<<ref_value_try_as_uint64>></ref_value_try_as_uint64>
	<<ref_value_as_uint64>>	<<ref_value_as_uint64>></ref_value_as_uint64>
	<<ref_value_get_uint64>>	<<ref_value_get_uint64>></ref_value_get_uint64>
:95	<<ref_kind,`kind::double_`>>	<<ref_kind,`kind::double_`>></ref_kind,`kind::double_`>
	https://en.cppreference.com/w/cpp/language/types[`double`]	https://en.cppreference.com/w/cpp/language/types[`double`]
	<<ref_value_emplace_double>>	<<ref_value_emplace_double>></ref_value_emplace_double>
	<<ref_value_is_double>>	<<ref_value_is_double>></ref_value_is_double>
	<<ref_value_if_double>>	<<ref_value_if_double>></ref_value_if_double>
	<<ref_value_try_as_double>>	<<ref_value_try_as_double>></ref_value_try_as_double>
	<<ref_value_as_double>>	<<ref_value_as_double>></ref_value_as_double>
	<<ref_value_get_double>>	<<ref_value_get_double>></ref_value_get_double>
:95	<<ref_kind,`kind::bool_`>>	<<ref_kind,`kind::bool_`>></ref_kind,`kind::bool_`>
	https://en.cppreference.com/w/cpp/language/types[`bool`]	https://en.cppreference.com/w/cpp/language/types[`bool`]
	<<ref_value_emplace_bool>>	<<ref_value_emplace_bool>></ref_value_emplace_bool>
	<<ref_value_is_bool>>	<<ref_value_is_bool>></ref_value_is_bool>
	<<ref_value_if_bool>>	<<ref_value_if_bool>></ref_value_if_bool>
	<<ref_value_try_as_bool>>	<<ref_value_try_as_bool>></ref_value_try_as_bool>
	<<ref_value_as_bool>>	<<ref_value_as_bool>></ref_value_as_bool>
	<<ref_value_get_bool>>	<<ref_value_get_bool>></ref_value_get_bool>
:95	<<ref_kind,`kind::null`>>	<<ref_kind,`kind::null`>></ref_kind,`kind::null`>
	https://en.cppreference.com/w/cpp/language/nullptr[`std::nullptr_t`]	https://en.cppreference.com/w/cpp/language/nullptr[`std::nullptr_t`]
	<<ref_value_emplace_null>>	<<ref_value_emplace_null>></ref_value_emplace_null>
	<<ref_value_is_null>>	<<ref_value_is_null>></ref_value_is_null>
	^\|— \|<<ref_value_try_as_null>> ^\|— ^\|—	^\|— \|<<ref_value_try_as_null>> ^\|— ^\|—</ref_value_try_as_null>
	The emplace members of <<ref_value>> return a typed reference to the underlying representation. For example, the call to <<ref_value_emplace_string,`value::emplace_string`>> in the previous example returns a <<ref_string,`string&`>>. This table shows the underlying type for each kind:	<<ref_value>> 的置入成员函数返回对底层表示形式的类型化引用。例如，前例中对 <<ref_value_emplace_string,`value::emplace_string`>> 的调用返回一个 <<ref_string,`string&`>> 。下表列出了每种 kind 对应的底层类型：</ref_string,`string&`></ref_value_emplace_string,`value::emplace_string`></ref_value>

	English	Chinese (Simplified Han script)	Actions
	<<ref_value_as_int64>>	<<ref_value_as_int64>></ref_value_as_int64>
	Formatted Output	格式化输出
	null: A	空值：一种
	https://en.cppreference.com/w/cpp/utility/variant/monostate[__monostate__] value, equivalent to `nullptr`.	https://en.cppreference.com/w/cpp/utility/variant/monostate[__monostate__]（单态）值，等同于`nullptr`。
	boolean: A boolean: either `true` or `false`.	布尔值：布尔类型，取值为`true`或`false`。
	number: An integral or floating point value.	数值：整型或浮点型值。
	`std::uint64_t`	`std::uint64_t`
	<<ref_value_as_string>>	<<ref_value_as_string>></ref_value_as_string>
	<<ref_value_get_string>>	<<ref_value_get_string>></ref_value_get_string>
	https://en.cppreference.com/w/cpp/types/integer[`std::int64_t`]	https://en.cppreference.com/w/cpp/types/integer[`std::int64_t`]
	<<ref_value_emplace_int64>>	<<ref_value_emplace_int64>></ref_value_emplace_int64>
	<<ref_value_is_int64>>	<<ref_value_is_int64>></ref_value_is_int64>
	<<ref_value_if_int64>>	<<ref_value_if_int64>></ref_value_if_int64>
	<<ref_value_try_as_int64>>	<<ref_value_try_as_int64>></ref_value_try_as_int64>
	<<ref_value_get_int64>>	<<ref_value_get_int64>></ref_value_get_int64>
	https://en.cppreference.com/w/cpp/types/integer[`std::uint64_t`]	https://en.cppreference.com/w/cpp/types/integer[`std::uint64_t`]
	<<ref_value_get_uint64>>	<<ref_value_get_uint64>></ref_value_get_uint64>
	https://en.cppreference.com/w/cpp/language/types[`double`]	https://en.cppreference.com/w/cpp/language/types[`double`]
	<<ref_value_try_as_double>>	<<ref_value_try_as_double>></ref_value_try_as_double>
	<<ref_value_as_double>>	<<ref_value_as_double>></ref_value_as_double>
	<<ref_value_get_double>>	<<ref_value_get_double>></ref_value_get_double>
	<<ref_value_emplace_bool>>	<<ref_value_emplace_bool>></ref_value_emplace_bool>
	<<ref_value_try_as_bool>>	<<ref_value_try_as_bool>></ref_value_try_as_bool>
	<<ref_value_get_bool>>	<<ref_value_get_bool>></ref_value_get_bool>
	If the <<ref_kind>> of a <<ref_value>> is known, functions such as <<ref_value_as_bool,`value::as_bool`>> or <<ref_value_as_string,`value::as_string`>> may be used to obtain a reference to the underlying representation without changing the existing value:	如果已知 <<ref_value>> 的 <<ref_kind>>，可使用诸如 <<ref_value_as_bool,`value::as_bool`>> 或 <<ref_value_as_string,`value::as_string`>> 等函数，在不改变现有值的情况下获取对底层表示的引用：</ref_value_as_string,`value::as_string`></ref_value_as_bool,`value::as_bool`></ref_kind></ref_value>
	However, as shown above these functions throw an exception if the kind in the <<ref_value>> does not match the kind denoted by the function signature. This can be used as a concise form of validation: access values as if they were the right type, but handle the resulting exception indicating if the schema of the JSON is not valid.	然而，如上所示，如果 <<ref_value>> 中的实际类型与函数签名所指定的类型不匹配，这些函数会抛出异常。这一行为可作为一种简洁的验证形式：以预期类型直接访问值，若 JSON 结构无效，则通过捕获异常进行处理。</ref_value>
	We can query a value for its underlying representation of a particular kind in a way that does not throw exceptions by requesting a pointer which may be null, instead of a reference. Here we use <<ref_value_if_string,`value::if_string`>> to conditionally perform an assignment without using exceptions:	我们可以通过请求一个可能为空的指针（而非引用）来查询值中特定种类的底层表示形式，而不会抛出异常。这里我们使用 <<ref_value_if_string,`value::if_string`>> 来条件执行赋值操作，而无需使用异常：</ref_value_if_string,`value::if_string`>
	Functions returning {ref_result} allow you to use both approaches:	返回 {ref_result} 的函数允许您同时使用上述两种方式：
	When a <<ref_value>> is formatted to a {std_ostream}, the result is serialized JSON as if by calling <<ref_serialize>>.	当将 <<ref_value>> 输出到 {std_ostream} 时，其结果等同于调用 <<ref_serialize>> 所生成的序列化 JSON。</ref_serialize></ref_value>

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Chinese (Simplified Han script) 29 characters editedCurrent translationState: Translated

06/05/2026

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Chinese (Simplified Han script) 23 characters editedPrevious translationState: Needs editing (Needs rewriting)

06/05/2026

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safe-html, strict-same

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42620

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:95

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06/05/2026

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06/05/2026

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doc/pages/dom/value_zh_Hans.adoc, string 64

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