大家都没用过吗？下边这段程序那位大侠能给解释一下吗？
A #ParameterSet
S #WRITERECORD_SFB53.REQ
R #ParameterSet
A #WRITERECORD_SFB53.DONE
R #WRITERECORD_SFB53.REQ
S #READRECORD_SFB52.REQ
CALL #WRITERECORD_SFB53
REQ :=
ID :=#TEMP_DiagnoseAdresse
INDEX :=47
LEN :=240
DONE :=
BUSY :=
ERROR :=
STATUS:=
RECORD:=#TEMP_ANY_OrderData
A #WRITERECORD_SFB53.ERROR
R #DataTransferRun
R #WRITERECORD_SFB53.REQ
JCN M001
L W#16#8001
T #Status
M001: NOP 0
CALL #READRECORD_SFB52
REQ :=
ID :=#TEMP_DiagnoseAdresse
INDEX :=47
MLEN :=240
VALID :=
BUSY :=
ERROR :=
STATUS:=
LEN :=
RECORD:=#TEMP_ANY_RequestData
A #READRECORD_SFB52.VALID
R #READRECORD_SFB52.REQ
A #READRECORD_SFB52.ERROR
R #DataTransferRun
R #READRECORD_SFB52.REQ
JCN M002
L W#16#8002
T #Status
M002: NOP 0