用于画矩形框

说明：  编写一个程序，用以接受用户输入的两个double类型的值。一个值表示用户想要存放在银行账户中的金额。另一个值表示用户想要从银行账户中提取的金额。创建自定义异常，以确保提取的金额始终小于或等于当前的余额。引发异常时，程序应显示一则错误消息。否则，程序应显示从用户存款中扣除取款额之后的账户余额。(Write a program to accept the value of two double types that the user enters. A value represents the amount the user wants to store in a bank account. The other value is the amount that the user wants to extract from the bank account. Create a custom exception to ensure that the amount extracted is always less than or equal to the current balance. When an exception is caused, a program should display an error message. Otherwise, the program should show the balance of the account after deducting the amount from the user's deposit.)

粒子群算法程序，有重要参考价值，尤其适合初学者(particle swarm algorithm procedure, which has important reference value，particularly suitable for beginners )

matalab 实验案例 c++ 积分(matlab you can use it for your maths)

一个泊松随机数生成代码，可调节的，但是貌似产生的随机数一直都不变(A Poisson random number generator code, can be adjusted, but the seemingly random numbers have been generated by the same)

说明：  test code for HOLTEK touch key

nrf24L01 2.4 g h Z 无线收发模块

说明：  友善之臂MIni2440开发板官方光盘文件(Friendly Arm MIni2440 Development Board Official CD)

对初学c#有很大的帮助，很详细的列举了GUI绘图的例子

这个是超市管理系统等管理系统中经常用到的一个DLL,它可以非常方便的使编程人员能够实现金额的大小转换,在这个DLL中,我用到一点我个人的心得。希望大家喜欢。(This is a supermarket management system management system often used in a DLL. It can be very convenient enables programmers to realize the size of the amount of change in the DLL, I used my personal experience. Hope you like them.)

利用MATLAB对信号进行FFT处理，观察幅频响应和相频响应(FFT using MATLAB for signal processing, observed amplitude frequency response and phase frequency response)