txt_TO_dat

用中点画圆法画椭圆。可以改变大小和位置。(Ellipse midpoint drawcircle.You can change the size and position.)

基于VB实现的QQ空间音乐搜索、试听工具.有需要的下。(Based on VB realize the QQ space music search, audio-visual tools. In need.)

说明：  全球定位系统单点定位程序，根据N文件和O文件解算地面点的坐标(Global positioning system, single point positioning procedure, in accordance with N documents and O document solver coordinates of ground points)

说明：  Description Michael喜欢滑雪百这并不奇怪， 因为滑雪的确很刺激。可是为了获得速度，滑的区域必须向下倾斜，而且当你滑到坡底，你不得不再次走上坡或者等待升降机来载你。Michael想知道载一个区域中最长底滑坡。区域由一个二维数组给出。数组的每个数字代表点的高度。elements in that rectangle. In this problem the sub-rectangle with the largest sum is referred to as the maximal sub-rectangle. ()

C语言如何使用函数中的局部变量,仅供学习与参考(How to use C language function of the local variable, is only for study and reference)

用于求三组数，每组数的各个位都不相同。第二组数为第一组的2倍，第3组数为第一组的3倍(Is used to find the number of three, the number of the bits in each group are different. The second number of groups for the first group of two times the number of the third group of three times the first group)

对一段只含有几种字符的字符串进行转换，转换成相应的数字(a string contains only several character conversion, and converted into the corresponding digital )

一个学习标准模版的好例子！大学时候老师给的！供大家参考！(a study standard template good example! University teachers to time! For your reference!)

button按下后，edit控件内容连续变化，button抬起后edit内容停止变化。自己做的例子，只以int数据为例。(button is pressed, edit control content changes continuously, button lift stops changing after edit content. Own example, an int data as an example only.)

实现GPS+IMU扩展卡尔曼滤波组合导航，重力场和磁场推算姿态(Achieve the GPS+ IMU extended Kalman filter integrated navigation, gravity field and magnetic field profile projection)