This way we show the low resolution background image of this page during screen viewing and hide it during printing (based on the value of ForPrint parameter).
这样,我们只有当页面是在屏幕上显示时使用低分辨率的背景图像和并在打印时隐藏它(根据ForPrint参数值进行判断)。
While this code is specific to a Printer, it is oblivious to whether the test is for printing or initialization, or to whether Printer is the target of a method call or a parameter to a method.
虽然这段代码是针对Printer的,但无论测试的是打印还是初始化,无论printer是方法调用的目标还是方法参数,都没有关系。
It is this that allows us to do the trick of printing out the parameter "p" and then passing it to the "rest" function to continue the computation, seen here in the definition of the "Bind" method.
这样话,就可以让我们能取巧打印出参数“p”并接着把它传递给“rest”函数继续进行计算。
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