输入年月日，计算为该年的第几天！能识别不合理日期的输入，并能及时停止程序-Enter year, month date, calculated for the first few days in! Can identify the input date is unreasonable, and can stop the program in time

适合svm的初学者，通过本代码的练习，可以使初学者对c-svm进行分类有一个感性认识。-Svm suitable for beginners, through this code of practice, you can make beginners c-svm classification has a perceptual knowledge.

模式识别方面的文章，非常有用，特征选择和分类方法都比较新。-pattern recogniziation paper,it is helpful for image processing coder.