字符串编码(C#)

private void EncodeName(string str)
        {
            string strGB2312=System.Web.HttpUtility.UrlEncode(str,System.Text.Encoding.GetEncoding("GB2312")).ToUpper();
            string DecodeGB2312=System.Web.HttpUtility.UrlDecode(strGB2312,System.Text.Encoding.GetEncoding("GB2312"));
            // System.Text.Encoding.Default 默认编码

            Response.Write( "编码(GB2312)："+ strGB2312 +"<br>" );
            Response.Write( "解码(GB2312)："+ DecodeGB2312 +"<p></p>" ); 

            
            string EncodeNameUTF8=System.Web.HttpUtility.UrlEncode(str,System.Text.Encoding.GetEncoding("utf-8")).ToUpper();
            string DecodeUTF8=System.Web.HttpUtility.UrlDecode(EncodeNameUTF8,System.Text.Encoding.GetEncoding("utf-8"));

            Response.Write( "编码(UTF8)："+ strEncodeNameUTF8 +"<br>" ); 
            Response.Write( "解码(UTF8)："+ DecodeUTF8 +"<br>" );

        }