At new of /At end of

如果有abcd，at end of B，是对B以及B之前的字段进行判断

不是仅仅对b进行判断，而且如果at end of b，就会对b后面的数据清空初始化，

所以在at end of 前用 另一个工作区接收一下，

一定注意，是B之前的所有字段进行判断

at new也一样

例子：

REPORT  zlm_at_end_of.


TYPES: BEGIN OF ty_itab,
           a TYPE i,
           b TYPE i,
           c TYPE decfloat34,
           d TYPE i,
           e TYPE i,
     END OF ty_itab.

DATA:d TYPE i.

DATA: wa_itab TYPE ty_itab,
      it_itab LIKE STANDARD TABLE OF wa_itab.
DATA: wa_itab2 TYPE ty_itab,
      it_itab2 LIKE STANDARD TABLE OF wa_itab2.



  wa_itab-a = 1.
  wa_itab-b = 2.
  wa_itab-c = 3.
  wa_itab-d = 4.
  wa_itab-e = 5.
  APPEND wa_itab TO it_itab.
  CLEAR:wa_itab.
  wa_itab-a = 1.
  wa_itab-b = 2.
  wa_itab-c = 8.
  wa_itab-d = 9.
  wa_itab-e = 10.
  APPEND wa_itab TO it_itab.
  CLEAR:wa_itab.
  wa_itab-a = 1
  .
  wa_itab-b = 2.
  wa_itab-c = 13.
  wa_itab-d = 14.
  wa_itab-e = 15.
  APPEND wa_itab TO it_itab.
  CLEAR:wa_itab.
  wa_itab-a = 12.
  wa_itab-b = 3.
  wa_itab-c = 13.
  wa_itab-d = 14.
  wa_itab-e = 15.
  APPEND wa_itab TO it_itab.
  CLEAR:wa_itab.
  REFRESH it_itab2.
  
  LOOP AT it_itab INTO wa_itab.


    AT END OF b.
      WRITE : /   wa_itab-a,wa_itab-b,wa_itab-c.
      ULINE.
    ENDAT.


  ENDLOOP.

特别注意： at end of 或者new of 后，

of参考字段后面的所有字段都会 被清空 有时候是变成 * （星号）。

使用时特别注意，是否使用of 后面的字段了