【C#】在窗口输出字符串

private void button1_Click(object sender, EventArgs e)
{
Graphics g = Graphics.FromHwnd(Handle);
Font f = new Font(" 宋体", 34);
Brush b;
b = new SolidBrush(Color.Black);
g.DrawString("aaaaaaaaaaaa",f,b,50,50);
g.Dispose();
}