不管中断何时唤醒这个线程，就使用与实际api和应用程序相同的方法来处理这个中断。

Whenever an interrupt wakes up the thread, process the interrupt the same way the actual API and application process it.

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然而在中断处理和进程切换之间有一个关键的区别：由中断或异常处理执行的代码不在进程中。

But there is a key difference between interrupt handling and process switching: the code executed by an interrupt or by an exception handler is not a process.

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阐述了外部中断在工控机应用中的特殊地位以及WINDOWS与DOS在这方面的不同，通过一个典型的范例说明了DOS在处理中断中所具有的灵活性和高效性。

The particular position of the external interrupt in the application of computers for industry control and the difference between WINDOWS and DOS on this respect are expounded.

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