对方的编码是gb2312，所以这边提交信息过去都是乱码的，需要怎么转码
var ss: WideString;
ss := '中文';
sResult := smsSvc.Masssend1(g_USERCODE,g_PASSWORD, oData.FieldByName('mobile').AsString,ss,'','','','');
ii := Pos('err=发送成功',sResult);

request.setCharacterEncoding("GB2312");
response.setCharacterEncoding("GB2312");
仅供参考