自己制作的关于开关灯游戏的一个解题工具-To produce their own games on a light switch problem-solving tool

asp.net专家疑难解答200问：包括源码，很不错的入门学习及常见问题解决的方法-asp.net expert Troubleshooting 200 Q: including source code, it is a good entry-learning and common problem-solving approach

测绘中贝塞尔大地主题问题解算有正反解，还有对话框，用户可以通过对话框输入数据-Surveying and Mapping Bessel Geodetic Problem solving inverse solution, there is dialog, the user can input data through a dialog box