Label[] lbl = new Label[5];
for (int i = 4; i >= 0; i--)//这里一定要从大到小,楼主可以试试从小到大
{
lbl[i] = new Label();
int t = i + 40;
int l = i + 20;
lbl[i].Name = "lbl" + i.ToString();
lbl[i].Text = "abc" + i.ToString();
lbl[i].Location = new Point(10+t,10+);
this.Controls.Add(lbl[i]);
}