FM四舍五入_从小数点最后一位进位

原贴地址：http://jiahongguang12.blog.163.com/blog/static/334665720071060551591/

   输入参数12.5445,因此FM从小数点最后一位进位，FM参数 CONV_DEC =2 为精确到第2位小数   ,

   打印结果：12.55;                     

  REPORT  Z_TEST_007.

DATA : DAT TYPE P DECIMALS 9  VALUE '12.5445' ,
       DAT1 TYPE P DECIMALS 9 .

*       MOVE DAT TO DAT1.

CALL FUNCTION 'HR_NZ_ROUNDING_DECIMALS'
  EXPORTING
    VALUE_IN                       = DAT                      " Input field with decimals

   CONV_DEC                       = 2                         " i    Number of desired decimals for conversion

 IMPORTING
   VALUE_OUT                      = DAT1.                  " Output field with rounded decimals

* EXCEPTIONS
*   NO_ROUNDING_REQUIRED             = 1        " No rounding required. (CONV_DEC > VALUE_IN dec)

*   DECIMALS_GREATER_THAN_10       = 2        " Conversion only possible with decimals <= 10

*   ROUNDING_ERROR                          = 3        " An error occurred during the decimal conversion

*   OTHERS                                           = 4.

"  HR_NZ_ROUNDING_DECIMALS

WRITE DAT1.

注：处理的数据必须是数值类型，SAP默认四舍五入，如果是P类型可以直接定义小数位来限制