C# keypress 事件激起 Click 事件

        private void TextBox1_KeyPress(object sender, KeyPressEventArgs e)        {            if (e.KeyChar == (char)Keys.Enter)            {                //这里要让它激发  Buttonl_Click  事件  忘了怎么写            }        }        private void Buttonl_Click(object sender, EventArgs e)        {           .......................        }