txt_TO_dat

后缀表达式计算器，这里是整个CPP，文件里代码完整，适合初学者阅读使用。(Postfix expression calculator, here is the entire CPP, file integrity code, suitable for beginners to read.)

excel文件操作源代码，用OLE实现的(excel file manipulation source code, using OLE realize the)

A simple vector operation class and header

vc++将汉字转换成拼音的程序源代码，非常有意思，它不单纯转换为拼音，而且还可以设置分隔符，按规则转换：全部转换成大写、全部转换成小写、将首字母大写，还可以转换为现在流行的拼音首字母简写，也就是只取拼音首字母，按大写或小写提取，看来确实非常有意思也非常实用哦。(vc++ will be converted into Chinese characters spelling the source code, very interesting, it does not simply converted to Pinyin, but also can be set separators in accordance with the rules of conversion: the conversion of all upper case, all converted to lowercase to uppercase the first letter, but also can be converted to Pinyin is now the first letter of the popular shorthand, that is, only the first letter of alphabet, based on extraction of upper or lowercase, it seems very interesting indeed Oh also very practical.)

字母流星雨，可以形成26个字母组成的流星雨，可以闪烁，还可以使组成地面的字母消失(meteor shower)

说明：  1到33的任意6个数字，他们之和加起来是61，或者改掉sum数字，让他们和为你想要的数字(1 to33Any 6 numbers, and they add up to 61, or get rid of sum numbers, and make them as the number you want )

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 )

说明：  这个小工具可以实现浮点数（4个字节）和实数之间的转换。(This gadget can achieve floating-point numbers (4 bytes) and the conversion between real numbers.)

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)

用C++实现的贪吃蛇游戏程序，对游戏的设计思路有比较详细的讲解。(no )