Which means the procedure cannot change the underlying variable element ,这意味着过程无法更改基础变量元素。
Three methods are widely used to separate mixed costs into their fixed and variable elements 三种方法被广泛使用于分离混合成本成为固定的和可变的元素。
Specifies that the procedure cannot replace or reassign the variable element underlying the corresponding argument in the calling code 指定过程不能替换或重新分配调用代码中相应参数下的变量元素。
You can still call its methods and access its data elements , although variable elements are reinitialized by the assignment 您仍可以调用变量的方法和访问它的数据元素,但赋值重新初始化了变量元素。