ABAP 中未触发选择开始？

Question

我正在学习this本书并引用第 5 章：

You are being introduced to the event START-OF-SELECTION. The first thing to understand about an event is to know when an event is triggered: that is, when program control jumps to the code under an event.

Scenario-I If there are no PARAMETERS statements in a program, pressing the function key F8 will begin the execution of the program starting from the first nondeclarative statement in the program.

In the scenario-I (no PARAMETERS statement/s) when the program is executed, control jumps to the event START-OF-SELECTION.

所以这里有我的示例代码：

REPORT ZTMP_TEST_INNBOUND.

WRITE 'Hello World!'.

START-OF-SELECTION.
WRITE 'Big-Bang first..'.

我希望先打印 "Bing-Bang First"，但事实并非如此。

这是输出：

Hello World!
Big-Bang first..

为什么输出不是相反？关于 START-OF-SELECTION ，我对书中解释的内容的理解是错误的吗？

Answer 1

根据 SAP，在可执行程序中，REPORT 或 PROGRAM 语句与第一个处理块之间出现的任何非声明性语句也在 START-OF-SELECTION 块中处理。因此，在您的代码示例中，第一个写入将执行，然后是第二个。

Here is a good reference

ABAP 中未触发选择开始？

START-OF-SELECTION not triggered in ABAP?

abap