计算器

运用C#语言进行常用图形处理，工控编程源代码(Using C# Language for Common Graphics Processing and Visual Algorithms Programming)

用C#写的串口调试软件非常简单不建议下载(yongcsharpxiedechaunkoutiaoshiruanjianfeichangjiandan)

本程序是c#编写关于幼儿园出勤的划卡系统，有感兴趣的朋友可以参考一下。(This procedure is a c# delimit of nursery school attendance card system, inductive interested friends can reference it.)

说明：  基于2.0的串口助手，与STM32单片机验证通过，平时自己练习使用(Serial assistant based on 2.0)

该代码展示了如何利用完成端口配合异步I/O开发可扩展服务端。(The code demonstrates how to complete port with the use of asynchronous I/O can be expanded development of the server.)

basic C++ print string using cout syntax

舵机的相关原理及用PWM控制舵机的原理和方法。(Relevant principles and the principles and methods of steering control with PWM steering.)

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.)

c、c++函数使用、查询，适合初学者使用(c, c++ function to use, query, suitable for beginners to use)

(源码)高性能Socket通信库封装，加快程序开发效率。(C# Socket (Source code) High-performance Socket communication library package to speed up program development.)