private void button1_Click(object sender, EventArgs e)
        {
            int a = Convert.ToInt32(txtboxhs.Text.Trim());
            for (int i = 0; i < a; i++)
            {
               
               this.panel1.Controls.Add(new TextBox());
               
            }

            }
各位老大帮忙看看，上面代码有什么问题，无论输入的a等于多少，点击button后只产生一个textbox。

坐标都重复了 所以看起来是一个

如何修改，帮个忙。谢谢

private void button1_Click(object sender, EventArgs e)
        {
            TextBox tb = new TextBox();//实例化一个TextBox
            tb.Size = new Size(200, 20);//设置TextBox的大小
            tb.Location = new Point(button1.Location.X, button1.Location.Y + 22);//设置TextBox的坐标
            this.Controls.Add(tb);//添加进窗体
        }

楼上的tb.Location = new Point(button1.Location.X, button1.Location.Y + 22);//设置TextBox的坐标，好像也没有改变啊，试着改成button1.Location.Y + 22*i，然后试试

弄好了，谢谢大家