一个公用的项目，封装时间处理类，字符串处理类，验证类和一些常用的javasript，将这个项目添加到自己的解决方案里可以节省不少力气-a common item, Packaging class time, the string class, Class certification and some commonly used javasript. The project will be added to the solution, I could save a lot of effort