*加上p_in的前导零
FORM add_zero CHANGING p_kunag .
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
EXPORTING
input =p_kunag
IMPORTING
output = p_kunag .
ENDFORM.
*去除p_out的前导零
FORM del_zero CHANGING p_out.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
EXPORTING
input = p_kunag
IMPORTING
output = p_kunag .
ENDFORM.