ABAP 数值四舍五入函数

DATA : dat  TYPE p DECIMALS  VALUE '12.5445' ,

       dat1 TYPE p DECIMALS  .

DATA   dat2 TYPE p DECIMALS  VALUE '12.540'.

* 方法一

CALL FUNCTION 'HR_NZ_ROUNDING_DECIMALS'

  EXPORTING

    value_in                 = dat

    conv_dec                 =       " 设置保留几位小数

  IMPORTING

    value_out                = dat1

  EXCEPTIONS

    no_rounding_required     =

    decimals_greater_than_10 =

    rounding_error           =

    OTHERS                   = .

* 方法二

CALL FUNCTION 'ROUND'

  EXPORTING

    decimals      =        " 保留多少位小数

    input         = dat2

    sign          = '+'     " + 向上取舍 - 向下取舍 （负数也一样）

  IMPORTING

    output        = dat1    " 输出返回结果

  EXCEPTIONS

    input_invalid =

    overflow      =

    type_invalid  =

    OTHERS        = .