修改可控：控制外发文件是否允许协作厂商对该文件进行二次编辑。未经授权，文件只能读取不能修改。

Modify control: control the outgoing file is allowed to co - operate the file for the two edit. Unauthorized, the file can only be read can not be modified.

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尝试为写被只能读的一个文件，或哪一个实际上是一个目录开启。

Trying to open for writing a file which is read only, or which is actually a directory.

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尝试从在只能读的模态被开启的一个文件写。

Trying to write from a file which was opened in read only mode.

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