Step (4) prepares the request to be sent over the stream by converting the string into an array of bytes, i.e. binary.

步骤(4)通过将字符串转换成字节序列(比如二进制)准备好通过流发送的请求。

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Similarly, the application retrieves the record as a stream of bytes and converts it into a string.

同样，这个应用程序以字节流形式检索记录，然后将它转换成一个字符串。

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Users can stream the output data into a string, an internal buffer, the standard output, or a file.

用户可以使这些输出数据流入字符串、内部缓冲区、标准输出或文件。

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