VB.net编程初学者出现“索引超出了数组界限”问题，望各位高手解答。

Question

Dim name As String
Dim yuwen As Short
Dim shuxue As Short
Dim yingyu As Short
Dim zonghe As Short
Dim pingjunfen As Short
xingming = InputBox("输入姓名", "输入名字吧")
yuwen = InputBox("输入语文成绩", vbOKOnly)
shuxue = InputBox("输入数学成绩", vbOKOnly)
yingyu = InputBox("输入英语成绩", vbOKOnly)
zonghe = yuwen + shuxue + yingyu
pingjunfen = zonghe / 3
MsgBox("平均分"(pingjunfen), [vbOKOnly])
错误出现在最后一行，以前我在VB6里也是用这种方法编辑，怎么现在却出错了呢。

Answer 1

在VB里，"平均分"(pingjunfen), 这是数组的调用方法，当然会报错了
这样改吧：
Dim xingming As String
Dim yuwen As Short
Dim shuxue As Short
Dim yingyu As Short
Dim zonghe As Short
Dim pingjunfen As Short
xingming = InputBox("输入姓名", "输入名字吧")
yuwen = InputBox("输入语文成绩", vbOKOnly)
shuxue = InputBox("输入数学成绩", vbOKOnly)
yingyu = InputBox("输入英语成绩", vbOKOnly)
zonghe = yuwen + shuxue + yingyu
pingjunfen = zonghe / 3
MsgBox("平均分：" & pingjunfen, [vbOKOnly])

Answer 2

问题在这里
for (int i = 0; i <= k / 2; i++)
{
int temp;
temp = change[i];
change[i] = change[k - i];
change[k - i] = temp;
}

第一次循环的时候
change[0] = change[4];
而你这个数组只有4个元素
索引最大也只有3
所以超过了