ieee14

说明：  哈尔滨工业大学,visual basic,编程课件，第3章(Harbin University of Technology, Visual Basic, Programming Courseware, Chapter 3)

内有红外收发的子程序，收和发是分开的。已经调试过，非常好用，有效的距离可达3米多-There are infrared transceiver of the subroutine, to close and fat are separated. Have been debug, and very easy to use and effective range of up to 3 meters

Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. And Git is the most powerful tool of VCS.(Version control is a system that records changes to a file or set of files over time so that you can recall specific versions later. And Git is the most powerful tool of VCS.)

Delphi环境数据编辑控件源码——AnPopListBox V2.0控件源码，随测试实例代码。关于控件及使用的几点说明： 　　1、使用Execute 方法取得返回值(变量型) 　　2、AutoWidth 设置是否自动匹配列宽，CanFind 设置是否可以查找数据；ActiveADO 是试行SQL语句是否有效，并填充DisplayField 显示字段名,DisplayText 显示标题，DisplayWidth在AutoWidth = False 时，用户定义的列宽。 　　3、单击列标题可以排序，Ctrl + E 可以导出Excel,F5 刷新数据。

shell编程中经常用到sed命令，本文详细介绍了shell常用命令sed详细用法(sed will be usually used when shell coding)

说明：  根据塑性理论，硬化分为随动硬化和等向硬化，这个UMAT是一个随动硬化的例子。(According to the theory of plasticity, hardening is divided into Kinematic hardening and isotropic hardening. This UMAT is an example of Kinematic hardening.)

DFPropInsp Delphi控件包，一个用于Delphi中的列表控制，比较老的控件了，不过效果挺好，用上后列表功能变多了，界面变漂亮了，大概效果请看下下边的截图。

利用最小二乘法进行拟合多元非线性方程，数学方法是部分子空间法，空间目标识别，采用PM算法。( Multivariate least squares fitting method of nonlinear equations, Mathematics is part of the subspace, Space target recognition algorithm using PM.)

说明：  在esp32上使用ds1302时钟模块，此程序主要使用正点原子stm32程序移植得到(Using DS1302 on esp32)

说明：  使用 python 语言实现水印的去除和添加，增加多种对抗(Using Python language to remove and add watermarks, and increase a variety of Countermeasures)