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