有如下代码： For i = 1 To 3 For j = 1 To i For k = j To 3 a = a +

来源：学生作业帮编辑：灵鹊做题网作业帮分类：数学作业时间：2024/04/29 06:40:25

有如下代码： For i = 1 To 3 For j = 1 To i For k = j To 3 a = a + 1 Next k Next j Next i
请解释一下代码中a为什么等于14?（请详细一点）

For i = 1 To 3 i 循环 1-3
For j = 1 To i j 循环 1-i
For k = j To 3 k循环 j-3
a = a + 1 每次 a+1
Next k
Next j
Next i
首先分析 i 一共循环了 1 1 1
然后看 j 一共循环了 1 2 3 公式：1+2+3= 6
最后看 k 一共循环了 3 3+2 3+2+1 公式：3+3+2+3+2+1=14

有如下代码： For i = 1 To 3 For j = 1 To i For k = j To 3 a = a + a = 0 For i = 1 To 3 For j = 1 To i For k = j To 3 a = a + 1 为什么For i = 1 To 3 For j = 1 To i For k = j To 3 a = a + 1 Ne vb多重循环试题For i= 1 to 3 for j= 1to i for k= j to 3 a=a+1 next 读下面程序：for i=1 to 3 for j=i to1 for k=j to 3 a=a+1 next k nex 有如下程序dim arr(3,3) for j=1 to 3 for j=1 to 3 arr(j,k)=(j-1)*3 Private Sub Command1_Click() For i = 1 To 3 For j = i To 1 a vb读程序题：For i=1 to 3 For j=1 to i For k=j to 3 a=a+1 Next k,j vb题,For i=1 to 2 for j=1 to 2 for k=1 to j Dim a%(3,3),i%,j% For i = 1 To 3 For j = 1 To 3 If j > land For i = 1 To 4 For j = 1 To 5 b(i) = b(i) + a(i,j) Next j Ne Private Sub Command1_Click() For i = 1 To 3 For j = 1 To i F