写一个程序，求一元二次方程的根

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DeDe3.2004源码-DeDe3.2004 source

1. 编程实现一个学生信息管理系统的图形界面。需要录入的信息 包括学号、姓名、性别、出生日期、是否联合培养等。根据这些 信息的性质选择使用不同的图形组件来设计界面。 2. 为上题增加事件处理的功能，当用户选定了某一个出生月份， 如3月份时，系统自动的把选择范围限制在1-31之间，当用户单击 “录入”按钮时，系统把所有的学生信息打印在屏幕上，或输出到 某个文件中保存。-1. Programming a Student Information Management System graphical interface. Input needed information, including school, name, sex, date of birth, whether the joint cultivation. According to the nature of the information to choose from different components to the graphic design interface. 2. For more on the incident and that the function when the user selects a certain month of birth, in March, the system automatically choose the limit between 1-31, when users click the "record" button, the system for all students Print on the screen, or lose up to a certain document preservation.

使用dx9进行游戏编程doc------Introduction to 3D Game Programming with DirectX 9.0 原著: Frank D. Luna -use dx9 game programming doc------ Introduction to 3D Game Programming with DirectX 9.0 works : Frank D. Luna

在STAR ES598PCI单板开发机上实现对电烤箱温度和时间的控制功能。 设计要求： （1）通过键盘设定温度和加热时间。 （2）使用DS18B20采集温度，采用七段数码管显示当前温度和剩余时间，并和设置的温度进行比较。 （3）当温度低于设定值时，通过DAC0832输出电压供给发热电阻RT1,使其温度升高。 （4）使温度恒定在设定温度附近，时间到了停止加热，并提示操作完毕。 -In the STAR ES598PCI veneer development machine to realize oven temperature and time control functions. Design requirements: (1) through the keyboard to set the temperature and heating time. (2) The use of DS18B20 collecting temperature, using seven-segment digital tube displays the current temperature and the remaining time, and and set the temperature for comparison. (3) When the temperature is below the set value, the DAC0832 output voltage of the supply of heat through the resistor RT1, so that temperature. (4) to enable the temperature constant at the set temperature near the time to the cessation of heating, and prompt action is completed.

c++的不错文档。-c good documents.

vc 6[1].0下标尺的设计与实现-vc 6 [1] .0 Ruler Design and Implementation

eclipse 的安装环境介绍，和详细配置步骤-eclipse installation configuration

经典的嵌入式C语言方面的资料，一共有3篇，针对不同的方面做了嵌入式C编程的讲解。-classic Embedded C language data, a total of three. different aspects of embedded done on the C programming.

MPEG4-SP讲解,对MPEG4初学者很有帮助,希望大家喜欢!-MPEG4-SP on the MPEG4 beginners helpful hope you like them!