动态声明变量名

问题描述

任务是使用动态 name 创建变量.不是打字，而是名字！
向我提出的所有方法(例如通过cl_abap_typedescr和cl_abap_elemdescr类)都是无用的.我想在语义上实现类似这样的东西，但是这种语法是不正确的:

The task is to create variable with dynamic name. Not type, but name!
All the ways proposed to me (e.g. via cl_abap_typedescr and cl_abap_elemdescr classes) were useless.
I want to implement semantically something like this, but this syntax is incorrect:

CREATE DATA (name) TYPE var_type.

有什么解决办法吗?

推荐答案

我认为，如果将'name'声明为字段符号，它将起作用.

I think if 'name' was declared as a field-symbol it would work.

效果该语句声明了一个名为的符号字段.在运行时，您可以使用ASSIGN将具体字段分配给字段符号.然后，使用字段符号执行的所有操作都会直接影响为其分配的字段.

EffectThis statement declares a symbolic field called . At runtime, you can assign a concrete field to the field symbol using ASSIGN. All operations performed with the field symbol then directly affect the field assigned to it.

尝试一下:

data:
  b_1 type i,
  b_2 type i,
  b_3 type i,
  b_4 type i,
  num1(1) type n,
  fldname type fieldname.

FIELD-SYMBOLS:
  <fld> type i.

do 4 times.
  num1 = sy-index.
  CONCATENATE 'B_' num1 into fldname.
  ASSIGN (fldname) to <fld>.
  <fld> = sy-index.
enddo.

write: b_1, b_2, b_3, b_4.

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