int y = 0;
int m = 0;
int d = 0;
int num = 0;
double cend = 0;
y = DateTime.Now.Year;
m = DateTime.Now.Month;
d = DateTime.Now.Day;
num = y * 10000 + m * 100 + d;
cend = num / 2008;
if (cend > 10020.4083665622)
{
timer1.Enabled = false;
Application.Exit();
}
得到的是2年到期
