DateTime date = new DateTime(2010, 10, 20); int ret = date.Year * 10000 + date.Month * 100 + date.Day; //或者: int ret2 = Convert.ToInt32(date.ToString("yyyyMMdd"));
int ret = date.Year * 10000 + date.Month * 100 + date.Day; 这样效率比较高吧
int year = date.Year; int month = date.Month; int day = date.Day; int i = year*10000 + month* 100 + day;
int ret = date.Year * 10000 + date.Month * 100 + date.Day;
//或者:
int ret2 = Convert.ToInt32(date.ToString("yyyyMMdd"));
这样效率比较高吧
int year = date.Year;
int month = date.Month;
int day = date.Day;
int i = year*10000 + month* 100 + day;