一个for循环根据条件可以递增或递减

RT:

for (int k = n-1; k >=0;k--)
{
int x = 0;
if (r.Order == 1)
{
x = n - k - 1;
}
else
{
x = k;
}
//DataRow r1 = table1.Rows[k];
DataRow r1 = table1.Rows[x];
//dosomething
}