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主程序中设置中断向量，调用新中断，并驻存在内存中。中断处理程序调用了系统的时钟，并在正点时启动扬声器进行报时。- In the master routine establishes the severance vector, transfers the new severance, and in existence memory in. The interrupt handling routine transferred the system clock, and when on time starts the speaker to carry on reports time.

Struts 教程-Struts Tutorial

为堆栈数据的存取（使用数组-to stack data access (using arrays

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一个dds的远程许，特好用，希望大家借鉴，共同学习-A long-range dds Xu, special use, I hope everyone learn, learning together

学生管理系统 是哦我做的，比较好用，功能完善-lyh

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判断一个素数能被几个9整除-judgment can be a prime number nine divisible

可编程中断控制器中断控制器8259A是专门为控制优先级中断而设计开发的芯片。它将中断源优先排队、辨别中断源以及提供中断矢量的电路集于一片中。因此无需附加任何电路，只需对8259A进行编程，就可以管理8级中断，并选择优先模式和中断请求方式，即中断结构可以由用户编程来设定。同时，在不需要增加其他电路的情况下，通过多片8259A的级连，能构成多达64级的矢量中断系统-Programmable Interrupt Controller Interrupt Controller 8259A is designed for control and priority interrupt the core design and development tablets. It will interrupt source priority queuing, identifying the source of disruption and the provision of the circuit interrupt vector set in a Chinese. Thus there is no need for any additional circuit, just right for 8259 A programming, it can manage eight interruption, and to choose the mode and priority interrupt request means that the structure can be interrupted by the user to set programming. At the same time, no additional circuit of the other, through more than 8,259 tablets of class A connected, could constitute up to 64 Vector Interrupt System