2、Personnel calculation rule X010 ：determine valuation basis ADDITION
对于 IT中的basic pay wage Types访问processing class 01，processing class 01的规范决定了Wage Type在那些valuation basis 中累积；
operations :
ADDWT : Add wage type to subsequent wage type; 将Wage Type(当前work Area中的)加到后面的wage Type
The wage type affected is transferred to internal table OT;
You can also rename the wage type.
ELIMI : Eliminate period indicators；消除period indicator；
将当前work Area中wage Type的period indicators (split indicators)删除，是为了保证累加的wage Type的值是distinct的；
ZERO : 初始化当前work area；