CONCATENATE:合并字符串. CONCATENATE f1 … fn INTO g [SEPARATED BY h]. 1 * CONCATENATE合并字符串 2 DATA: c1(10) TYPE c VALUE 'Sum', 3 c2(3) TYPE c VALUE 'mer', 4 c3(5) TYPE c VALUE 'holi ', 5 c4(10) TYPE c VALUE 'day', 6 c5(30) TYPE c , 7 sep(3) TYPE c VALUE ' -…