A Data Transfer object is a way to package a collection of values in a single object so they can be passed around economically.
数据传输对象是将一组值包装在一个对象中的方法，目的在于经济地传送这些值。
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How to transfer and run a script package in a virtual system.
如何在虚拟系统中传输和运行脚本包。
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When the client receives the information about the file, it prepares for it by calling the PrepareReceiveFile (..), and sends a package to the sever to start the file transfer.