abap using changing
时间: 2024-01-13 19:03:46 浏览: 30
"ABAP using changing" is a parameter passing mechanism used in ABAP programming language. It allows a subroutine or function module to modify the value of the calling program's variable by passing the address of the variable. This way, any changes made to the variable within the subroutine or function module are reflected in the calling program.
For example, if you have a variable "x" in your main program and you want to pass it to a subroutine to modify its value, you can use the "using changing" parameter passing mechanism by declaring the subroutine like this:
```
FORM my_subroutine USING CHANGING p_x TYPE i.
p_x = p_x + 1.
ENDFORM.
```
Here, "p_x" is a parameter passed to the subroutine using "using changing" mechanism. Any changes made to "p_x" within the subroutine will be reflected in the calling program's variable "x".