闭区间覆盖问题，是用贪心实现的！程序很简洁啊！

操盘手里面的可用指标，比较实用！ 的 后续为 DAF-操盘手里面的可用指标，比较实用！的 后续为 DAF

在两台计算机间用并行打印口通信的TURBO C程序-between two computers in parallel with the Print Communication TURBO C Program

80C51的串行通信口是一个功能强大的通信口，而且是相当好用的通信口，用于显示驱动电路再合适不过了，下面我们就根据这种需要设计一个用两个串行通信口线加上两根普通I/O口，设计一个4位LED显示电路。当然只要再加上两根I/O口线即可轻易实现8位LED的显示电路。 -80C51 Serial Communications mouth is a powerful communications mouth, but is very handy communications mouth, for the display driver circuit could not have been more appropriate, Now we need to design the basis of this one with two serial communication lines with two general I/O Hau, Design of a four LED display circuit. Of course if coupled with two I/O lines I could easily achieved eight LED display circuit.

牛顿－拉夫逊法潮流计算 基本步骤： 　　（1）形成节点导纳矩阵 　　（2）将各节点电压设初值U， 　　（3）将节点初值代入相关求式，求出修正方程式的常数项向量 　　（4）将节点电压初值代入求式，求出雅可比矩阵元素 　　（5）求解修正方程，求修正向量 　　（6）求取节点电压的新值 　　（7）检查是否收敛，如不收敛，则以各节点电压的新值作为初值自第3步重新开始进行狭义次迭代，否则转入下一步 　　（8）计算支路功率分布，PV节点无功功率和平衡节点柱入功率。-Newton-Raphson method flow calculation basic steps : (1) formation of nodal admittance matrix (2) to set up the initial node voltage U, (3) the initial node-generation-related demand. calculated that the constant term formula Vector (4) nodes will be incorporated into the initial voltage-seeking, calculated Jacobian matrix elements (5) solving that equation, seek to amend the vector (6) to strike a new node voltage value (7) to check whether convergence, if not restrained. concentrated in the nodes of the new voltage as the initial value since the first three steps to re-start the narrow iterations. Otherwise, turn into the next (8) Calculation branch power distribution, PV nodes reactive power and balance-node into powe

一些不错的VRML模型,是初学VRML的选择,有参考价值.-Some good VRML model of VRML is the choice of beginners, there is reference value.

提取IE临时文件夹里的文件 DOS命令 供大家学习-Extraction IE temporary files folder in the DOS command for U.S. Study

电动机保护测量程序,用的是DSP2407,-Motor Protection measurement procedures, using the DSP2407,

U-boot1.2源码 arm的bootloader-U-boot1.2 source arm of the bootloader

木翼下载系统-my download ..................................

在LabVIEW中实现由任意区间的数据转换为百分数输出-In LabVIEW to achieve by arbitrary interval of data into a percentage of output