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分享p1.Controls.AddAt(0, new LiteralControl("第一行<br>"));
p1.Controls.AddAt(1, new LiteralControl("第二行<br>"));
p1.Controls.AddAt(2, new LiteralControl("第三行<br>"));
p1.Controls.AddAt(3, new LiteralControl("第四行<br>"));p1.Controls.AddAt(0, new LiteralControl("第四行<br>"));
p1.Controls.AddAt(0, new LiteralControl("第三行<br>"));
p1.Controls.AddAt(0, new LiteralControl("第一行<br>"));
p1.Controls.AddAt(1, new LiteralControl("第二行<br>"));