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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When overridden in a derived class, encodes a set of characters from the specified character array and any characters in the internal buffer into the specified byte array.

在派生类中重写时，将指定字符数组中的一组字符和内部缓冲区中的任何字符编码到指定的字节数组中。

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Any stream with an internal buffer should override this method and provide a much more efficient version that writes to the buffer directly, avoiding the extra array allocation on every call.

所有具有内部缓冲区的流都应重写此方法，提供一个直接写入缓冲区的有效得多的版本，以避免每次调用时都要进行额外的数组分配。

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Any stream with an internal buffer should override this method and provide a much more efficient version that writes to the buffer directly, avoiding the extra array allocation on every call.

所有具有内部缓冲区的流都应重写此方法，提供一个直接写入缓冲区的有效得多的版本，以避免每次调用时都要进行额外的数组分配。

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