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功能代码的重用是个老生常谈的话题，ABAP代码中实现程序的调用以及调用时数据参数的传递又是怎样的呢
（1） 调用其他程序：
| * Trigger the IDOC SUBMIT zpcppmd001_idoc AND RETURN. |
（2） 调用其他程序参数传递参数：
| 当被调用的程序的屏幕有输入参数时： SUBMIT zreport with p_param1 = 'value1' with p_param2 = 'value2'. 当要传递一个内表到被调用的程序时,需要用SAP MEMORY或者ABAP MEMORY: 在调用的程序中：EXPORT it_tab TO MEMORY 'Z_MEMORY'. 在被调用的程序中：IMPORT T_ITAB FROM MEMORY 'Z_MEMORY'. |
(3) 更复杂一点的可以用文件临时存储数据：
| 带select-options程序的Submit的用法 *Code used to populate 'select-options' & execute report DATA: seltab type table of rsparams, seltab_wa like line of seltab. seltab_wa-selname = 'PNPPERNR'. seltab_wa-sign = 'I'. seltab_wa-option = 'EQ'. * load each personnel number accessed from the structure into * parameters to be used in the report loop at pnppernr. seltab_wa-low = pnppernr-low. append seltab_wa to seltab. endloop. SUBMIT zreport with selection-table seltab via selection-screen. 其他情况 *Submit report and return to current program afterwards SUBMIT zreport AND RETURN. *Submit report via its own selection screen SUBMIT zreport VIA SELECTION-SCREEN. *Submit report using selection screen variant SUBMIT zreport USING SELECTION-SET 'VARIANT1'. |
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