将小数值按指定的小数位数舍入。
Rounds a decimal value to a specified number of fractional digits.
如该系数多于两个小数位，则会调整至小数点后最相近的两位数值。
Where there are more than 2 decimal places in the Module Weighted Value, the value will be rounded off to the nearest 2 decimal places.
数值数据类型的小数位数是小数点右侧的位数。
The scale of a numeric data type is the number of digits to the right of the decimal point.
应用推荐