一些函数记录

根据结构生成一个gt_fieldcat
LVC_FIELDCATALOG_MERGE
CALL FUNCTION ‘LVC_FIELDCATALOG_MERGE’
EXPORTING
i_structure_name = ‘ZSYGS03_MOHDR’
CHANGING
ct_fieldcat = gt_fieldcat
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.