OnscreenKeyboard_src

动态数组应用实例。将动态数组运用于房间的计算，包括房间个数，总面积，平均面积，最大以及最小房间面积等(Dynamic array application example. Dynamic arrays used in the calculation of the room, including the room number, the total area, average size, maximum and minimum room size, etc.)

说明：  演示如何在wpf中承载w32内容，简单，易懂，很实用(Demonstrates how the content of wpf in carrying w32)

编写C程序，随机给出n*n的邻接矩阵，并打印输出邻接矩阵，以及有向图的边的个数，每个顶点的度，并判断该图中是否存在Euler回路： （1）如果为n阶，则随机产生一个n*n的邻接矩阵； （2）输出邻接矩阵，边的个数，每个顶点的度以及图中是否存在Euler回路。 这个题目涉及到了两个主要的知识点，一个是数据结构中的有向图的邻接矩阵的创建，还有就是离散数学中的Euler回路的判定定理。(The preparation of C procedures, were randomly given n* n s adjacency matrix and adjacency matrix printouts, as well as to map the number of edges, each vertex degrees, and determine the existence of the map Euler circuit: (1) If for n-order, then randomly generated a n* n adjacency matrix (2) output adjacency matrix, the number of edges, each vertex of degree as well as map the existence of Euler circuit. This topic relates to two main points of knowledge, a data structure of digraph adjacency matrix of creation, there is discrete mathematics in the loop to determine Euler theorem.)

编写程序，通过设置ios::scientific和ios::fixed标志以定点和科学记数法显示浮点类型数据。(Programming, by setting the ios:: scientific and ios:: fixed flag with fixed-point and scientific notation floating-point data types.)

说明：  在视图区画正弦函数曲线，并且在一个菜单下以对话框形式输入正弦图的起点和终点坐标。(In the view area sine curve drawing, and in the form of a menu in the dialog box enter the start and end the sine map coordinates.)

钟面上的时针和分针之间的夹角总是在 0 ～180之间 ( 包括 0 和180 ) 。举例来说，在十二点的时候两针之间的夹角为 0 ，而在六点的时候夹角为180 ，在三点的时候为90 。本题要解决的是计算 12:00 到 11:59 之间任意一个时间的夹角。(The angle between the hour and minute hands of the clock face is always between 0 to 180 (including 0 and 180). For example, twelve o' clock, when the angle between the two pin 0, in the six o' clock when the angle is 180, three points for 90. This question must be resolved are the angle of the calculation of 12:00 to 11:59 any one time.)

长度为N（N很大）的字符串，求最长回文串(Length N (N large) strings, find the longest palindrome string)

说明：  用VB做得，仿Vista经典界面的日历，也算个万年历，(Done using VB, a classic interface like Vista' s calendar, a calendar are also considered,)

vb笔记本电池电量检测程序,有兴趣的就下载吧。(vb laptop battery detection procedures are interested to download it.)