您必须减少您的循环变量.其余的数学并不是太困难.也不必以任何特殊方式处理第一次迭代:

You have to decrease your loop variable. The rest is not too difficult math. Its also not necessary to handle the first iteration in any special way:

for (int i = generateQuater; i > 0; i--)
{
    lstQuaterYear.Add(string.Format("Q{0}-{1}", currentQuater, currentYear));
    if (--currentQuater == 0)
    {
        currentQuater = 4;
        currentYear--;
    }
}