Report Machine(RM)报表控件简单用法-delphi
https://www.cnblogs.com/delxe/p/4018077.html
Delphi报表开发ReportMachine的小计和总计的计算
https://www.cnblogs.com/leonkin/archive/2012/02/22/2363680.html
Delphi-Report Machine使用
https://blog.csdn.net/Linjingke32/article/details/81427908