frreport1.loadfromfile('路径');
frreport1.showreport;//预览
frReport1.LoadFromFile('路径');
frReport1.PrepareReport;
frReport1.PrintPreparedReport('',1,true,frall);//直接打印
frReport1.LoadFromFile('路径');
frReport1.PrepareReport;
frReport1.PrintPreparedReportDlg;//出现打印设置窗口