While I won't go further into this in this paper, it's interesting to note that, in this case, the input and output parameters are not wrapped into a new class as before.
虽然本文没有深入探讨这个话题,但是在本实例中,输入和输出的参数不能像以往一样封装到新类中,注意到这一点是很有意义的。
This has a practical benefit as it avoids wasting paper when the selected output is to be printed on a printer.
这种特性有实际价值,因为在打印机上打印选定的页面避免了浪费纸张。
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