第一个ABAP,感谢JOM_CH

*&---------------------------------------------------------------------*
*& Report ZFIRP0037
*&---------------------------------------------------------------------*
*&
*&---------------------------------------------------------------------*
REPORT zfirp0037.
TABLES :bseg,kna1.

**定义结构

TYPES: BEGIN OF gty_out,
         bukrs   LIKE bseg-bukrs,   "公司代码
         belnr   LIKE bseg-belnr,   "凭证编号
         gjahr   LIKE bseg-gjahr,   "年度
         H_BLDAT LIKE BSEG-H_BLDAT, "票据日期
         hkont   LIKE bseg-hkont,   "借方科目
         shkzg   LIKE bseg-shkzg,   "借贷
         hkont1  LIKE bseg-hkont,   "贷方科目
         kunnr   LIKE bseg-kunnr,   "客户号
         name1   LIKE kna1-name1,   "客户名称
         xref1   LIKE bseg-xref1,   "业务员
         wrbtr   LIKE bseg-wrbtr,   "金额
         sgtxt   LIKE bseg-sgtxt,   "摘要
         h_blart LIKE bseg-h_blart, "凭证类型
         PRCTR   LIKE bseg-PRCTR, "利润中心
         H_BUDAT LIKE BSEG-H_BUDAT, "过帐日期
       END OF gty_out.

*标准的ALV输出
* slis 类型池 全局变量 定义，多数没用，
DATA: g_repid             TYPE sy-repid,
      g_line              TYPE slis_fieldcat_alv,
      gt_fieldcat         TYPE slis_t_fieldcat_alv,
      gt_layout           TYPE slis_layout_alv,
      gt_sortinfo         TYPE slis_sortinfo_alv,
      gt_lvc_title        TYPE lvc_title,
      gt_list_top_of_page TYPE slis_t_listheader,
      gt_events           TYPE slis_t_event,
      gt_fcat             TYPE lvc_t_fcat,
      gt_table            TYPE REF TO data,
      gs_settings         TYPE lvc_s_glay,
      f2code              LIKE sy-ucomm VALUE '&TEA'.


* 定义用于输出的内表
DATA: gt_tab TYPE STANDARD TABLE OF gty_out.
DATA: gt_tab2 TYPE STANDARD TABLE OF gty_out.

*选择屏幕
SELECT-OPTIONS:
  s_kunnr FOR bseg-kunnr,"客户号
  s_BUKRS FOR bseg-bukrs,"公司代码
  s_xref1 FOR bseg-xref1,"业务员
  s_ktokd FOR KNA1-KTOKD,"客户组
  s_rq FOR bseg-h_bldat OBLIGATORY.

**功能 程序
** 1 正常回款
START-OF-SELECTION.
  SELECT DISTINCT
    b~bukrs,
    b~belnr,
    b~gjahr,
    b~H_BLDAT,
    a~hkont,
    b~shkzg,
    b~hkont,
    b~kunnr,
    c~name1,
    b~xref1,
    b~wrbtr,
    b~sgtxt,
    b~h_blart,
    b~PRCTR,
    b~h_budat

  INTO TABLE @gt_tab
  FROM   bseg AS a
  INNER JOIN  bseg AS b
      ON a~bukrs = b~bukrs AND a~belnr = b~belnr AND a~gjahr = b~gjahr
  INNER JOIN kna1 AS c
    ON b~kunnr = c~kunnr
  WHERE ( a~hkont LIKE '1002%' OR a~hkont LIKE '1121%'  OR a~hkont LIKE '1012%' )  "1002*银行存款  １１２１ 应收票据 １０１２ 其它货币资金   １１２２＊ 应收帐款
       AND a~shkzg = 'S'
      AND ( b~hkont LIKE '1122%'  )
      AND b~shkzg = 'H'
       AND b~h_monat <> '000' AND b~kunnr <> ''
       AND B~H_BLART <> 'ZF'  "不显示清帐凭证
       AND C~KTOKD in @s_ktokd           "客户类别
      AND b~bukrs IN @s_bukrs
      AND b~kunnr IN @s_kunnr
      AND b~xref1 IN @s_xref1
      AND b~h_bldat IN  @s_rq.

**2 处理退款调款 ,需要变为负数
  SELECT DISTINCT
    b~bukrs,
    b~belnr,
    b~gjahr,
    b~H_BLDAT,
    a~hkont,
    b~shkzg,
    b~hkont,
    b~kunnr,
    c~name1,
    b~xref1,
    b~wrbtr,
    b~sgtxt,
    b~h_blart,
    b~PRCTR,
    b~h_budat
  INTO TABLE @gt_tab2
  FROM        bseg AS a
  INNER JOIN  bseg AS b
  ON a~bukrs = b~bukrs AND a~belnr = b~belnr AND a~gjahr = b~gjahr
  INNER JOIN kna1 AS c
  ON b~kunnr = c~kunnr
  WHERE ( a~hkont LIKE '1002%' OR a~hkont LIKE '1121%'  OR a~hkont LIKE '1012%' )
       AND a~shkzg = 'H'
  AND ( b~hkont LIKE '1122%'   )
  AND b~shkzg = 'S'
   AND b~h_monat <> '000' AND b~kunnr <> ''
       AND B~H_BLART <> 'ZF'
  AND C~KTOKD in @s_ktokd           "客户类别
  AND b~bukrs IN @s_bukrs
  AND b~kunnr IN @s_kunnr
  AND b~xref1 IN @s_xref1
  AND b~h_bldat IN  @s_rq.

**FIELD-SYMBOL 指针 可直接更改内表字段的值 .
  LOOP AT gt_tab2 ASSIGNING FIELD-SYMBOL(<fs_out>).
    <fs_out>-wrbtr =  <fs_out>-wrbtr * -1.
  ENDLOOP.

  APPEND LINES OF  gt_tab2 TO gt_taB.

**去掉前导000
  LOOP AT gt_tab ASSIGNING FIELD-SYMBOL(<fs_out2>).
      SHIFT <fs_out2>-kunnr LEFT DELETING LEADING '0'.
      SHIFT <fs_out2>-belnr LEFT DELETING LEADING '0'.
      SHIFT <fs_out2>-prctr LEFT DELETING LEADING '0'.
  ENDLOOP.


END-OF-SELECTION.

**执行函数
  PERFORM frm_show_alv.


* 输出 alv 报表
FORM frm_show_alv .

  DEFINE append_alv_field.
    CLEAR g_line.
    g_line-fieldname    = &1.
    g_line-tabname      = 'GT_ALV'.
    g_line-reptext_ddic = &2.
    g_line-seltext_l    = &2.
    g_line-seltext_m    = &2.
    g_line-seltext_s    = &2.
    g_line-cfieldname   = &3.
    g_line-ctabname     = &4.
    g_line-no_out       = &5.
    g_line-no_zero      = &6.
    g_line-outputlen    = &7.
    g_line-qfieldname   = &8.
    g_line-just         = &9.
    g_line-ddictxt      = 'L'.
    g_line-do_sum       = 'X'.
    APPEND g_line TO gt_fieldcat.
  END-OF-DEFINITION.


**ALV 显示字段
  REFRESH:gt_fieldcat.

  append_alv_field 'bukrs' '公司' '' '' '' '' '' '' ''.
  append_alv_field 'h_bldat' '票据日期' '' '' '' '' '' '' ''.
  append_alv_field 'belnr' '凭证号' '' '' '' '' '' '' ''.
  append_alv_field 'kunnr' '客户号' '' '' '' '' '' '' ''.
  append_alv_field 'name1' '客户名称' '' '' '' '' '' '' ''.
  append_alv_field 'xref1' '业务员' '' '' '' '' '' '' ''.
  append_alv_field 'HKONT' '借方科目' '' '' '' '' '' '' ''.
  append_alv_field 'SHKZG' '借贷' '' '' '' '' '' '' ''.
  append_alv_field 'HKONT1' '贷方科目' '' '' '' '' '' '' ''.
  append_alv_field 'wrbtr' '金额' '' '' '' '' '' '' ''.
  append_alv_field 'SGTXT' '摘要' '' '' '' '' '' '' ''.
  append_alv_field 'H_BLART' '类型' '' '' '' '' '' '' ''.
  append_alv_field 'PRCTR' '利润中心' '' '' '' '' '' '' ''.
  append_alv_field 'h_budat' '过帐日期' '' '' '' '' '' '' ''.




  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      i_callback_program = sy-repid
*     i_callback_pf_status_set = 'FRM_STATUS'   "GUI指定子程序
*     i_callback_user_command  = 'FRM_USER_COMM' "客户命令指定子程序
      is_layout          = gt_layout
      it_fieldcat        = gt_fieldcat[]
*     it_events          = events[]
    TABLES
      t_outtab           = gt_tab[] "指定要显示的内表名称
    EXCEPTIONS
      program_error      = 1
      OTHERS             = 2.


ENDFORM.
**在ACDOCA表中，公司代码RBUKRS，会计年度GJAHR，借贷标识DRCRK，期间POPER（排除期间为00），科目号RACCT，利润中心PRCTR，客户KUNNR，公司代码货币RHCUR，以公司代码货币计金额 HSL，
*1）以公司代码，年度，期间 为选择条件，筛选出凭证编码BELNR为集合一
*2）在集合一的基础上，筛选出满足：
*（借贷标识DRCRK=S，科目号RACCT=1002*或者1121*，借贷标识DRCRK=H，科目号RACCT=1122* ）或者
*（借贷标识DRCRK=S，科目号RACCT=1122*，借贷标识DRCRK=H，科目号RACCT=1002*或者1121*）的凭证编码为集合二
*3）取集合二两种情况的应收账款RACCT=1122* 所在行的公司代码金额HSL，以及客户KUNNR（客户为空的排除掉），利润中心PRCTR，金额求和之后乘以负一
*举例：借方1002*贷方1122*满足，借方1121*贷方1122*满足，借1002*借1121*贷1122*贷1122*多借多贷也满足