So we open a file stream and create a binary reader from it to access the DWG file.

因此，我们打开一个文件流并创建一个二进制读者从中访问DWG文件。

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A method to code character image based on information of run length is presented, which can save a mass of file Spaces with binary form to access data.

提出用行程段信息表示字符图像的编码方法，以二进制形式存取，能节省大量的文件存储空间。

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And also explains a method of download file in binary access.

另外，下载文件用二进制读写的方式实现。

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