SAP 调用RFC 的时候记录异常报错方式

 DATA: lv_error TYPE char100.

 CALL FUNCTION 'ZRFC_WM_ZEL001' DESTINATION lv_desc
   EXPORTING
     process_flag          = lv_zclbs
   IMPORTING
     return_value          = lv_subrc
     return_message        = lv_message
   TABLES
     zel_stockchange_head  = lt_stockchange_head
     zel_stockchange_item  = lt_stockchange_item
   EXCEPTIONS
     system_failure        =   MESSAGE lv_error
     communication_failure =   MESSAGE lv_error
     OTHERS                = .

 IF sy-subrc = .
   e_subrc = lv_subrc.
   e_message = lv_message.
 ELSE.
   e_subrc = sy-subrc.
 *    e_message = 'RFC连接错误'.
   e_message = lv_error.
 ENDIF.

lv_error 记录报错消息