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remote retail billing system
remote retail billing system
- 2023-04-24 23:05:04下载
- 积分：1
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提供矩阵以及向量的各种运算，线性方程组的求解，二次曲面的插值和逼近，最小二乘法等数值分析计算工具
提供矩阵以及向量的各种运算，线性方程组的求解，二次曲面的插值和逼近，最小二乘法等数值分析计算工具-Provide a variety of matrix and vector operations, linear equations, quadratic surface interpolation and approximation, the least square method such as numerical analysis and calculation tools
- 2022-05-09 09:16:49下载
- 积分：1
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PR2000
说明： PixelPlus PR2000k Datasheet
- 2021-02-19 10:34:50下载
- 积分：1
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C51 some errors and attention to the business (ZT) 1) C taboo absolute positioni...
C51的一些误区和注意事项（ZT）
1)C忌讳绝对定位。 常看见初学者要求使用_at_,这是一种谬误，把C当作ASM看待了。在C中变量
的定位是编译器的事情，初学者只要定义变量和变量的作 用域，编译器就把一个固定地址给这个
变量。怎么取得这个变量的地址？要用指针。比如unsigned char data x 后，x的地址就是...
-C51 some errors and attention to the business (ZT) 1) C taboo absolute positioning. See beginners often require the use of _at_, this is a fallacy, ASM C as a treat. C variables in the positioning of the compiler things, as long as the definition of beginners variable and the variable scope, Compiler put a fixed address to this variable. How the variables made the address? Use indicators. Unsigned char data such as x, x is the address ...
- 2022-09-01 21:15:03下载
- 积分：1
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模拟电子课程的教学演示程序，包含大学模拟电子技术的所有内容，适合大学模拟电子的教学和学习，包含有高级界面设计技术。...
模拟电子课程的教学演示程序，包含大学模拟电子技术的所有内容，适合大学模拟电子的教学和学习，包含有高级界面设计技术。-electronic simulation of the Teaching Demonstration Program, including the University of simulation technology in all electronic content for electronic simulation of the University of teaching and learning, contain advanced interface design technology.
- 2023-08-09 08:00:03下载
- 积分：1
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chengxuwenjian
用有限元解微分方程，真解与数值解的图像对比以及误差分析(Solving differential equations by finite element method and error analysis)
- 2017-10-03 15:29:12下载
- 积分：1
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company1-2
公司有n个员工，编号1 ~ n。员工数量众多，需要你为他们编写一个管理系统。
员工上班时都要登录管理系统登记一个code，离开要从管理系统上注销，员工也可以随时更新自己的code。到了下班时间，所有员工都会自动注销。公司管理人员随时都可能想要知道有多少员工上班，以及任一员工登记的code。(The company has n employees, number 1 ~ n. There are so many employees that you need to write a management system for them.
When employees go to work, login to the management system to register a code, leave to log off from the management system, employees can also update their code at any time. By the end of the day, all employees will automatically log out. Company managers may at any time want to know how many employees go to work, and the number of code registered by any employee.)
- 2017-10-14 16:30:03下载
- 积分：1
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Models
AR程序设计5，扫描图片可以出现三维模型，并操作(AR programming 5, scanning pictures can appear three-dimensional model, and operation)
- 2020-06-18 06:40:01下载
- 积分：1
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Visual C# 使用键盘控制窗体的移动
Visual C#使用键盘控制窗体的移动，创建窗体对象，设置窗体接收按键事件，定义一个标识窗体的变量，判断按键类型，判断后关闭本窗体。
private void Form1_Load(object sender, EventArgs e)
{
Frm_Main form1 = new Frm_Main();//创建窗体对象
form1.KeyPreview = true;//设置窗体接收按键事件
}
private void Form1_KeyDown(object sender, KeyEventArgs e)
{
Point point = this.Location;//定义一个标识窗体的变量
switch (e.KeyData)//判断按键类型
{
case Keys.Up://当按键为上方向键时
point.Y -= 2;
break;
case Keys.Down://当按键为下方向键时
point.Y += 2;
break;
case Keys.Right://当按键为右方向键时
point.X += 2;
break;
case Keys.Left://当按键为左方向键时
point.X -= 2;
break;
case Keys.Escape://当按键为Esc键时
this.Close();//关闭本窗体
break;
default: break;
}
this.Location = point;
}
- 2022-03-13 23:48:13下载
- 积分：1
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stm32f103-rc522+hal
main file with stm complete mfrc522 tested
- 2019-02-23 13:41:28下载
- 积分：1
