从268项目开始，到现在2938基本开发完成，在开发过程中遇到了很多问题，我们都非常艰难地走过来了；因此我们把过去开发中产生的问题进行总结，并将错误产生的原因显示给后来的开发者，将是这文档的主要目的。-268 project from the beginning to now, the basic developed 2938, in the development of many problems encountered in the process, we are very tough to come over　so we developed in the past to sum up the problems arising, and will be displayed to the cause of the error Later, developers will be the main purpose of this document.