方法一：SELECTION-SCREEN COMMENT 01(78) txt01. 最简单的用COMMENT就可以，换行用SELECTION-SCREEN skip .
方法二：
selection-screen begin of block bl2 with frame title text-004.
selection-screen: begin of line,
comment 3(60) text-005,
end of line,
begin of line,
comment 3(60) text-006,
end of line.
selection-screen end of block bl2.
效果：
