片上计算机系统设计系统 The next generation of computer system designers will be less concerned about details of processors and memories, and more concerned about the elements of a system tailored to particular applications. These designers will have a fundamental knowledge of processors and other elements in the system, but the success of their design will depend on the skills in making system-level tradeoffs that optimize the cost, performance and other attributes to meet application requirements. This book provides a new treatment of computer system design, particularly for System-on-Chip (SOC), which addresses the issues mentioned above. It begins with a global introduction, from the high-level view to the lowest common denominator (the chip itself), then moves on to the three main building blocks of an SOC (processor, memory, and interconnect). Next is an overview of what makes SOC unique (its customization ability and the applications that drive it). The final chapter presents future challenges for system design and SOC possibilities.
翻译Abstract This article controls the temperature and humidity of greenhouse vegetables through the design of computer automatic control of vegetable greenhouse temperature and humidity remote monitoring system. On this basis, this paper states the corresponding design system’s hardware and software thought in detail, establishes the system core as AT89852 single-chip microcomputer, and with Delphi software to implement the corresponding system simulation. From the point of the effect of implementation, the system is of high automation degree, good human-machine interface, low cost, convenient and simple operation, so it has existence value and good application prospect.
利用接口做参数，写个计算器，能完成加减乘除运算。 定义一个接口icompute含有一个方法int computer(int n, int m)。 定义add类实现接口icompute，实现computer方法，求m，n之和 定义sub类实现接口icompute，实现computer方法，求n-m之差 定义main类，在里面输入两个整数a, b，利用add类和sub类的computer方法，求第一个数a和第二个数b之和，输出和，第一个数a和第二个数b之差，输出差。
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