DCS contains a TestDriver class that helps users convert a file directly by passing it to DCS.

DCS包含一个testdriver类，此类帮助用户通过直接将某个文件传递给DCS来转换该文件。

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DCS contains a TestDriver class that helps users convert a file directly by passing it to DCS.

DCS包含一个testdriver类，此类帮助用户通过直接将某个文件传递给DCS来转换该文件。

youdao