如果N=2,Sum(N)是一个函数,且Sum(1)=5,那么语句: Set Sum=Sum(N-1) +N 将把值6赋给Sum。 If N = 2, Sum (N) is a function and Sum (1) = 5, then the statement: Set Sum = Sum (N-1) +N The value 6 will be assigned to Sum.
用下标变量(数组)的一个好处是,与相同数量的无下标变量相比,它占用的存储空间更少。 One advantage of using subscript variables (arrays) is that it takes less storage space than the same number of non-subscript variables.
下面的语句: Declare Array1[10], Array2[20] As Integer 为200个变量分配了空间。 The following statement: Declare Array 1 [10], Array 2 [20] As Integer Storage space was allocated for 200 variables.