这个代码错在哪里      private void Form1_Click(object sender, EventArgs e)
      {
          PictureBox iqizi = new PictureBox();
          iqizi.SizeMode = PictureBoxSizeMode.AutoSize;
          Point yourclick = pbqipan.PointToClient(Control.MousePosition);
          iqizi.Location = yourclick;
          iqizi.ImageLocation = "/img/black.png";
      }