盘点小数点位数( 有几位显示几位，无则不显示)
代码：
lv_labst = IS_OUT-LABST .
DATA: lv_str1 type string ,lv_str2 type string .
**
**BREAK-POINT .
CONDENSE lv_labst NO-GAPS.
SPLIT lv_labst AT '.' INTO lv_str1 lv_str2.
SHIFT lv_str2 RIGHT DELETING TRAILING '0'.
CONDENSE lv_str2.
CONCATENATE lv_str1 '.' lv_str2 INTO lv_labst.
SHIFT lv_labst RIGHT DELETING TRAILING '.'.