REPORT zdyn_test. FIELD-SYMBOLS: <dyn_table> TYPE STANDARD TABLE, <dyn_wa>, <dyn_field>. DATA: dy_table TYPE REF TO data, dy_line TYPE REF TO data, it_structure TYPE lvc_t_fcat, wa_structure TYPE lvc_s_fcat. START-OF-SELECTION. PERFORM create_structure. " 定义内表的结构 PERFORM create_dynamic_table. " 按照定义的内表结构,产生一个内表 PERFORM write_data_to_dyntable. " 向动态内表中写数 PERFORM output_dyntable_data. " 从动态内表中取数,并写到屏幕 *&---------------------------------------------------------------------* *& Form create_structure *&---------------------------------------------------------------------* FORM create_structure . wa_structure-fieldname = 'COL1'. " 第一列列名 wa_structure-col_pos = 1. " 表示第一列 --- 可心省略,默认情况下,第一行对应到生产内表的第一列,如果指定,则按指定的列顺序生成内表 wa_structure-inttype = 'C'. " 数据类型 wa_structure-intlen = 6. " 长度 APPEND wa_structure TO it_structure. wa_structure-fieldname = 'COL2'. " 第二列列名 wa_structure-col_pos = 2. " 表示第二列--- 可心省略,默认情况下,第一行对应到生产内表的第一列,如果指定,则按指定的列顺序生成内表 wa_structure-inttype = 'C'. " 数据类型 wa_structure-intlen = 6. " 长度 APPEND wa_structure TO it_structure. wa_structure-fieldname = 'COL3'. " 第三列名 wa_structure-col_pos = 3. " 表示第三列 --- 可心省略,默认情况下,第一行对应到生产内表的第一列,如果指定,则按指定的列顺序生成内表 wa_structure-inttype = 'C'. " 数据类型 wa_structure-intlen = 6. " 长度 APPEND wa_structure TO it_structure. ENDFORM. " create_structure *&---------------------------------------------------------------------* *& Form create_dynamic_table *&---------------------------------------------------------------------* FORM create_dynamic_table . CALL METHOD cl_alv_table_create=>create_dynamic_table EXPORTING it_fieldcatalog = it_structure IMPORTING ep_table = dy_table. ASSIGN dy_table->* TO <dyn_table>. " 用表类型指针 <dyn_table> 指向 数据对象的内容. ENDFORM. " create_dynamic_table *&---------------------------------------------------------------------* *& Form write_data_to_dyntable *&---------------------------------------------------------------------* FORM write_data_to_dyntable . DATA:wa_new_line TYPE REF TO data. DATA:i TYPE n. DATA:j TYPE n. CREATE DATA wa_new_line LIKE LINE OF <dyn_table>. " 建立一个与动态内表结构相同的数据对象,且数据对象为是一个结构 ASSIGN wa_new_line->* TO <dyn_wa>. " 用<dyn_wa>指针指向该结构 DO 3 TIMES. i = i + 1. CLEAR j. LOOP AT it_structure INTO wa_structure. j = j + 1. ASSIGN COMPONENT wa_structure-fieldname OF STRUCTURE <dyn_wa> TO <dyn_field>. " 用指针 <dyn_field>指向工作区<dyn_wa>中的一个字段,字段名为wa_structure-fieldname. CONCATENATE i j INTO <dyn_field>. " 给指针指向的字段赋值 ENDLOOP. APPEND <dyn_wa> TO <dyn_table>. ENDDO. ENDFORM. " write_data_to_dyntable *&---------------------------------------------------------------------* *& Form output_dyntable_data *&---------------------------------------------------------------------* FORM output_dyntable_data . LOOP AT it_structure INTO wa_structure. WRITE: wa_structure-fieldname(5). ENDLOOP. LOOP AT <dyn_table> INTO <dyn_wa>. WRITE: / . LOOP AT it_structure INTO wa_structure. ASSIGN COMPONENT wa_structure-fieldname OF STRUCTURE <dyn_wa> TO <dyn_field>. " 用指针 <dyn_field>指向工作区<dyn_wa>中的一个字段,字段名为wa_structure-fieldname. WRITE: <dyn_field>. ENDLOOP. ENDLOOP. ENDFORM. " output_dyntable_data
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