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booksale
图书管理系统可以方便图书销售过程中的各个环节,有利于图书类企业流动资金加快,有利于企业成本降低,更有利于他们即使掌握各种销售与库存信息,然而现在大多数的系统设计时都没有考虑到将来的需要,设计接口不够灵活,以至于当前环境变化后不能很好的适应新环境,造成软件寿命的简短,要想实现软件寿命的延长,就必须在设计软件的全过程中灌入一种动态的有预见性的设计,只要这样,将来条件发生了改变,软件只需局部做一些调整就能够适应新环境。(Library management system can easily book all aspects of the sales process, help speed up books like corporate liquidity, help enterprises to reduce the cost, even if they are more conducive to master a variety of sales and inventory information, but now most of the system design are not take into account future needs, designing the interface is not flexible enough, so that the current environment after the change are not well adapt to the new environment, resulting in a short lifetime software, in order to achieve the software life extension, you must design software, the whole process of filling into a dynamic anticipatory design, as long as this in the future conditions changed, the software only partially able to make some adjustments to adapt to the new environment.)
- 2013-06-26 20:16:35下载
- 积分:1
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单向空间后方交会
应用背景
空间后方交会是一种利用一定数量的地面控制点和对应像点坐标求解单张像片外方位元素的方法,它可以作为立体像对前方交会的基础。
关键技术
对任一控制点,我们已知其地面坐标和对应像点坐标,代入共线条件方程可以列出两个方程式,因此,只少需要3个控制点才能解算出六个外方位元素。 在实际应用中,为了避免粗差,应有多余检查点,因此,一般需要4~6个控制点。
- 2022-03-26 03:10:42下载
- 积分:1
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介绍一个在C#中调用C++Builder编写的DLL的方法,很详细。
介绍一个在C#中调用C++Builder编写的DLL的方法,很详细。-Introduction of a C# Call C++ Builder prepared DLL approach, very detailed.
- 2023-06-21 07:30:03下载
- 积分:1
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convolution_Filter
convolution filter application
- 2010-05-14 20:00:24下载
- 积分:1
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FirstTest
一个简单c++入门的计算器程序。里面有控件,控件变量添加,实现简单的加减乘除功能。(A simple C Entry calculator program)
- 2017-08-08 11:17:21下载
- 积分:1
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F103VET6 软件IIC控制 STM32_ADXL345_IIC
我使用的是F103VET6,软件IIC控制,改引脚配置后可方便移植。 SDL连接PB6、SDA连接PB7、CS连接高电平,SDO连接高电平的话模块的写地址为0x3A、读地址为0x3B··· ···(I use F103VET6, software IIC control, pin configuration can be easily transplanted. SDL connects PB6, SDA connects PB7, CS connects high level. SDO connects high level telephone module with write address of 0x3A and read address of 0x3B.)
- 2020-07-01 19:00:02下载
- 积分:1
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RN8209_Open_Source
energy power IC. using this file to configuration for RN8209 chip
- 2012-10-04 10:32:48下载
- 积分:1
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RTC
实时时钟芯片ds1302驱动程序,并配合8位数码管显示。(Real-time clock chip ds1302 driver, and with the 8-bit digital tube display.)
- 2010-08-16 08:56:11下载
- 积分:1
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Equalizer
模拟大型服务器均衡器工作,将多台低性能服务器组合成高性能、高可用的服务器(Simulate large server equalizer work combines multiple servers into a high-performance low-performance, high availability servers)
- 2014-09-04 00:50:08下载
- 积分:1
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MPU6050六轴传感器实验
基于STM32F103的MPU6050六轴陀螺仪传感器实验。可在LCD上显示MPU6050的数据,可在匿名四轴上位机上显示传感器的飞控状态。(The sensor experiment of MPU 6050 six-axis gyroscope based on STM32F103. The data of MPU6050 can be displayed on LCD, and the flight control status of the sensor can be displayed on an anonymous four-axis upper computer.)
- 2020-06-20 01:00:02下载
- 积分:1