研究程序是新手,希望能好好帮助需要帮助的人

(1) 设计一个程序，用于根据用户输入的命令行参数数量来计算长方形、正方形、三角形的面积。如果输入的参数为一个、二个、三个则它们应分别对应正方形、长方形、三角形，如果没有参数，则通过异常处理方法现实错误消息。（用于计算面积的方法是一个重载的方法。提示：定义一个抽象的父类，并提供一个抽象的方法area(). 再派生出三个子类，重写area()方法，然后在main方法中用多态来实现具体的面积函数的调用）。-(1) design a program based on user input for the command line parameters to calculate the number of rectangular, square, triangle area. If the input parameter is one, two, three then they should correspond to a square, rectangle, triangle, without parameters, exception handling through the real error message. (Used to calculate the area is an overloaded method. Note: the definition of an abstract parent class, and provides an abstract method area (). To send birth to three sub-classes override area () method, and then in main method using multi-state to achieve a specific area of a function call).

高频地波雷达对于天基海杂波的仿真，其中有一阶海杂波和二阶海杂波的仿真，对初学者很有帮助-HF ground wave radar clutter simulation for the DMH days, including a first-order sea clutter and second-order sea clutter simulation, very useful for beginners

串口测试，基于VC++，多线程编程，可同时测量四个串口-Serial test, based on VC++, multi-threaded programming, which can measure four serial ports

java语言版本的3D坦克游戏,供大家交流学习使用-java language version of the 3D tank game for the exchange of everyone learning to use

再matlab下面实现音乐信号的端点检测。 算法是利用帧长-sign

图廓线和方里网的说明ppt。 里面包括定义和规定，对定义理解很重要-Fig profile and description of ri network ppt. Includes definitions and provisions, the definition is very important to understand

embest的嵌入式开发环境,非常好用,是进行arm开发的必备工具-embest embedded development environment, very easy to use, is an indispensable tool for the development arm

清华大学出版社sophocles j.orfanidis英文原版信号处理导论习题课答案,-Tsinghua University Press sophocles j.orfanidis Signal Processing Introduction to the English original answer Exercise Class,

该函数将按照输入的优选对，输出相应的m序列和gold序列-The function will be preferred in accordance with the input that the output of the corresponding sequence of m sequences and gold

小i机器人开发，很好的东西。 -小i机器人开发，很好的东西。小i机器人开发，很好的东西。