ABAP(Advanced Business Application Programming)是一种高级业务应用编程语言,主要用于开发 SAP 系统。在 ABAP 中,函数调用时的参数传递方式有两种:按值传递(pass by value)和按引用传递(pass by reference)。这两种传递方式在很多编程语言中都有应用,它们在参数传递和内存管理方面有一些重要的区别。 按值传递(pass b...
Optional 可选的勾上,调用参数的时候非必须赋值 Pass by Value 值传递 勾上Pass by Value值传递:输出参数和返回值在过程调用的时候会被初始化 不勾上Pass by Value引用传递:地址传递,直接改变实参的值。一般使用引用传递,更高效
在SE37 函数编辑器的界面里,我们选中 Pass Value,然后按 F1,查看其帮助文档: 在SE24 ABAP 类编辑器里,同样选中 Pass Value,查看 F1 按下后弹出的帮助文档,内容略有不同。 本文余下部分以及教程后续步骤,我们将会分别就 ABAP 函数和 ABAP 类的调用两方面来详细阐述。教程的书写,还是秉承笔者一贯的风格,即通过...
SAP Managed Tags: ABAP Development When calling a method of an ABAP class, data can be passed from actual parameters to formal parameters either by value or by reference. In this blog post I’ll discuss the difference and highlight some important scenarios. Definitions Pass by value The ABAP...
SELECT SINGLE * FROM vbak INTO e_vbak WHERE vbeln = i_vbeln. IF sy-subrc <> 0. RAISE salesoder_not_exsit."当查找失败时,报出异常 ENDIF. *项目数据 SELECT * FROM vbap INTO TABLE t_vbap WHERE vbeln = i_vbeln. ENDFUNCTION.SAP ABAP 分享至 投诉或建议评论 赞与转发目...
Solved: hey, what difference makes if I pass the parameter by value vs pass by reference. thanks. - deepan Edited by: Deepan Gunalan on Feb 13, 2008 10:57 PM
SAP Managed Tags: ABAP Development Hi Suraj, BAPI's are generally RFC (Remote Function Calls) enabled function modules. In this type of FM's, we can not pass a parameter by reference. So, U see only Pass by Value option selected in both import and export parameters. Actual parameters:...
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Ok,...that means it is like pass by value and pass by reference as in C.That means it does not allow pass by reference in the importing parameter of the Function module.What is the reason behind this? Reply Clemenss Active Contributor In response to Former Member 2007 Jul 24 10...
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