请问这是为什么啊？在线等

[erigido]

SqlStr="insert into discount_card (custom_time,mobile_code,code_id) values(getdate(),'"+mobile+"','"+code+"')";
pMyConnect->Execute(SqlStr,&RecordsAffected,adCmdText);

Execute' : cannot convert parameter 1 from 'class CString' to 'class _bstr_t'
No constructor could take the source type, or constructor overload resolution was ambiguous

[taianmonkey]

pMyConnect->Execute((_bstr_t)SqlStr,&RecordsAffected,adCmdText);

[broadoceans]

pMyConnect->Execute((_bstr_t)SqlStr.AllocSysString(),&RecordsAffected,adCmdText);