ABAP实现的冒泡排序算法

REPORT ztest.

TYPES:BEGIN OF ty_line,

number TYPE i,

END OF ty_line.

DATA: lt_array TYPE STANDARD TABLE OF ty_line,

ls_array TYPE ty_line,

ls_array_temp type ty_line,

lv_length TYPE i.

DATA: i TYPE i,

j TYPE i,

k TYPE i.

DO 10 TIMES.

CLEAR ls_array.

CALL FUNCTION ‘QF05_RANDOM_INTEGER’

EXPORTING

ran_int_max = 100

ran_int_min = 1

IMPORTING

ran_int = ls_array-number

EXCEPTIONS

invalid_input = 1

OTHERS = 2.

IF sy-subrc <> 0.

WRITE:/ ‘Error occured.’.

EXIT.

ENDIF.

APPEND ls_array TO lt_array.

ENDDO.

LOOP AT lt_array INTO ls_array.

WRITE: ls_array-number.

ENDLOOP.

lv_length = lines( lt_array ).

i = 1.

DO lv_length - 1 TIMES.

j = lv_length - i.

k = 1.

DO j TIMES.

CLEAR: ls_array, ls_array_temp.

READ TABLE lt_array INTO ls_array INDEX k.

READ TABLE lt_array INTO ls_array_temp INDEX k + 1.

IF ls_array-number > ls_array_temp-number .

MODIFY lt_array FROM ls_array_temp INDEX k.

MODIFY lt_array FROM ls_array INDEX k + 1 .

ENDIF.

k = k + 1.

ENDDO.

i = i + 1.

ENDDO.

WRITE:/ 'result: '.

LOOP AT lt_array INTO ls_array.

WRITE: ls_array-number.

ENDLOOP.

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