子程序调用

假定程序包 含子程序：
PROGRAM FORMPOOL.
FORM SUB1.
WRITE: / ‘Subroutine 1‘.
ENDFORM.
FORM SUB2.
WRITE: / ‘Subroutine 2‘.
ENDFORM.
可在运行时 指定子程序 名，如下所 示：
PROGRAM SAPMZTST.
DATA: PROGNAME(8) VALUE ‘FORMPOOL‘,
SUBRNAME(8).
SUBRNAME = ‘SUB1‘.
PERFORM (SUBRNAME) IN PROGRAM (PROGNAME) IF FOUND.
SUBRNAME = ‘SUB2‘.
PERFORM (SUBRNAME) IN PROGRAM (PROGNAME) IF FOUND.

子程序调用

原文：http://www.cnblogs.com/sharpmap/p/3942706.html