try            {                char chr = textBox1.Text[0];                byte[] gb2312_bt = Encoding.GetEncoding("gb2312").GetBytes(new Char[] { chr });                int n = (int)gb2312_bt[0] << 8;                n += (int)gb2312_bt[1];                textBox2.Text = n.ToString();            }            catch(Exception)            {                MessageBox.Show("请输入汉字字符！","出现错误！");            } 获取汉字编码值