COBCH1607 構文は LIST 項目でのみ使用できる

In the following example, change the myField1 field to type DICTIONARY to be able to use the key keyword in the PERFORM statement:

class-id myClass.
01 myField1 list[string].
01 myField2 string.
method-id myMethod. 
  perform varying key myField2 through myField1
  ...
  end-perform.
end method.
end class.