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Parsing Chunks
Parsing Chunks解析分块数据
06/16/2026
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For the ultimate level of control, a caller can manually compose the chunk itself by first emitting a header with the correct chunk body size, and then by emitting the chunk body in multiple calls to the stream write function. In this case the caller is responsible for also emitting the terminating CRLF (`"\r\n"`):
For the ultimate level of control, a caller can manually compose the chunk itself by first emitting a header with the correct chunk body size, and then by emitting the chunk body in multiple calls to the stream write function. In this case the caller is responsible for also emitting the terminating若需要最高级别的控制，调用方可以手动组合分块：先发送一个带有正确分块体大小的头部，然后通过多次调用流写入函数来发送分块体。此时，调用方还需负责发送终止的 CRLF (（`"\r\n"`):）：
06/16/2026
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Alternatively, callers can take over the generation and lifetime management of the serialized trailer fields by passing in a non-owning string:
Alternatively, callers can take over the generation and lifetime management of the serialized trailer fields by passing in a non-owning string:或者，调用方也可以传入一个非拥有字符串，自行负责序列化尾部字段的生成及其生命周期管理：
06/16/2026
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Using a custom allocator to serialize the last chunk:
Using a custom allocator to serialize the last chunk:使用自定义分配器序列化最后分块：
06/16/2026
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The next code sample emits a chunked response which promises two trailer fields and delivers them in the last chunk. The implementation allocates memory using the default or a passed-in allocator to hold the state information required to serialize the trailer:
The next code sample emits a chunked response which promises two trailer fields and delivers them in the last chunk. The implementation allocates memory using the default or a passed-in allocator to hold the state information required to serialize the trailer:以下代码示例发送一个分块响应，该响应承诺携带两个尾部字段，并在最后分块中发送这些字段。实现会使用默认分配器或传入的分配器分配内存，用于保存序列化尾部所需的状态信息：
06/16/2026
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Callers can take over the generation and management of the extensions buffer by passing a non-owning string. Note that this requires the string contents to adhere to the correct syntax for chunk extensions, including the needed double quotes for values which contain spaces:
Callers can take over the generation and management of the extensions buffer by passing a non-owning string. Note that this requires the string contents to adhere to the correct syntax for chunk extensions, including the needed double quotes for values which contain spaces:调用方可以通过传递一个非拥有字符串来接管扩展缓冲区的生成和管理。需要注意的是，这要求字符串内容符合分块扩展的正确语法，包括对包含空格的字段值使用必要的双引号：
06/16/2026
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The following code sends additional chunks, and sets chunk extensions using the helper container. The container automatically quotes values in the serialized output when necessary:
The following code sends additional chunks, and sets chunk extensions using the helper container. The container automatically quotes values in the serialized output when necessary:以下代码发送额外的分块，并使用辅助容器设置分块扩展。该容器在必要时会自动对序列化输出中的值进行引号处理：
06/16/2026
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This example demonstrates sending a complete chunked message payload manually. No chunk extensions or trailers are emitted:
This example demonstrates sending a complete chunked message payload manually. No chunk extensions or trailers are emitted:本示例演示如何手动发送完整的分块消息有效载荷，过程中不发送分块扩展或尾部字段：
06/16/2026
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We demonstrate the use of these objects first by declaring a function which returns the next buffer sequence to use as a chunk body:
We demonstrate the use of these objects first by declaring a function which returns the next buffer sequence to use as a chunk body:首先声明一个函数，用于返回下一个作为分块体的缓冲区序列，以此演示这些对象的用法：
06/16/2026
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These helper functions are used to construct a chunk or last chunk directly at call sites.
These helper functions are used to construct a chunk or last chunk directly at call sites.这些辅助函数用于在调用点直接构造分块或最后分块。
06/16/2026
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[link beast.ref.boost__beast__http__make_chunk `make_chunk`]

[link beast.ref.boost__beast__http__make_chunk_last `make_chunk_last`]
[link beast.ref.boost__beast__http__make_chunk `make_chunk`]

[link beast.ref.boost__beast__http__make_chunk_last `make_chunk_last`]
06/16/2026
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A buffer sequence representing a last chunk. The last chunk indicates the end of the chunked message payload, and may contain optional trailer fields.
A buffer sequence representing a last chunk. The last chunk indicates the end of the chunked message payload, and may contain optional trailer fields.一个表示最后分块的缓冲区序列。最后分块用于标识分块消息有效载荷的结束，并可以包含可选的尾部字段。
06/16/2026
User avatar Bstran

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[link beast.ref.boost__beast__http__chunk_last `chunk_last`]
[link beast.ref.boost__beast__http__chunk_last `chunk_last`]
06/16/2026
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A buffer sequence representing a hex-encoded chunk size, followed by an optional set of chunk extensions, including the terminating CRLF (`"\r\n"`) delimiter which precedes the chunk body. This class is used when the caller desires to emit the chunk body in two or more individual stream operations.
A buffer sequence representing a hex-encoded chunk size, followed by an optional set of chunk extensions, including the terminating一个表示十六进制编码的分块大小的缓冲区序列，并附带一组可选的分块扩展（含分块体前的终止 CRLF (（`"\r\n"`) delimiter which precedes the chunk body. This class is used when the caller desires to emit the chunk body in two or more individual stream operations.）分隔符）。该辅助类用于调用方希望将分块体分成两次或多次独立流操作发送的场景。
06/16/2026
User avatar Bstran

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[link beast.ref.boost__beast__http__chunk_header `chunk_header`]
[link beast.ref.boost__beast__http__chunk_header `chunk_header`]
06/16/2026
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This is a simple, allocating container which lets callers easily build up a set of chunk extensions.
这是一个简单的、可分配内存的容器，用于能够让调用方轻松构建一组分块扩展。
06/16/2026
User avatar Bstran

Translation changed
This is a simple, allocating container which lets callers easily build up a set of chunk extensions.
This is a simple, allocating container which lets callers easily build up a set of chunk extensions.这是一个简单的、可分配内存的容器，用于让调用方轻松构建一组分块扩展。
06/16/2026
User avatar Bstran

Translation changed
[link beast.ref.boost__beast__http__chunk_extensions `chunk_extensions`]

[link beast.ref.boost__beast__http__basic_chunk_extensions `basic_chunk_extensions`]
[link beast.ref.boost__beast__http__chunk_extensions `chunk_extensions`]

[link beast.ref.boost__beast__http__basic_chunk_extensions `basic_chunk_extensions`]
06/16/2026
User avatar Bstran

Translation changed
A buffer sequence representing the CRLF (`"\r\n"`) delimiter. This class is used when the caller desires to emit the chunk body in two or more individual stream operations.
A buffer sequence representing the一个表示 CRLF (（`"\r\n"`) delimiter. This class is used when the caller desires to emit the chunk body in two or more individual stream operations.）分隔符的缓冲区序列。该辅助类用于调用方希望将分块体分成两次或多次独立流操作发送的场景。
06/16/2026
User avatar Bstran

Translation changed
[link beast.ref.boost__beast__http__chunk_crlf `chunk_crlf`]
[link beast.ref.boost__beast__http__chunk_crlf `chunk_crlf`]
06/16/2026

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