vb.net数组倒置 c语言倒置数组

VB.NET 2维数组排序排序和赋值问题

窗体上添加3个标签,1个按钮,在按钮的单击事件里写代码,如下:

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Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim a(,) As Integer = {{5, 6}, {1, 3}, {8, 9}, {72, 1}, {63, 4}}

Dim Temp As Integer

Dim i As Integer

Dim j As Integer

Dim x As Integer

Dim y As Integer

'显示排序前的数据

Label1.Text = "排序前数据:" vbCrLf

For i = 0 To 4

Label1.Text = Label1.Text a(i, 0) " " a(i, 1) vbCrLf

Next

For i = 0 To 3

For j = i + 1 To 4

If a(i, 0) a(j, 0) Then

Temp = a(i, 0)

a(i, 0) = a(j, 0)

a(j, 0) = Temp

Temp = a(i, 1)

a(i, 1) = a(j, 1)

a(j, 1) = Temp

End If

Next

Next

'显示排序前的数据

Label2.Text = "排序后数据:" vbCrLf

For i = 0 To 4

Label2.Text = Label2.Text a(i, 0) " " a(i, 1) vbCrLf

Next

'把第3行元素赋予X,Y

x = a(2, 0)

y = a(2, 1)

'输出X,Y

Label3.Text = "X=" x vbCrLf "Y=" y

End Sub

vb.net 怎么使用指针对数组快速赋值赋值

数组好像没有快速赋值吧,或者你再把问题再清楚一点。

语句执行时间倒是可以做到。在语句前

Dim oldTime As Date = Now

在过程语句后加

Dim newTime As Date = Now

Dim differenceInSeconds As Long = DateDiff(DateInterval.Second, oldTime, newTime)

textbox1.text= "共用了:" differenceInSeconds "秒!"

vb.net 数组

vb.net已经去掉了控件数组这个类,不过有个代替该方式的一个属性:Tag,你可以把这些关联的Tag属性设置为同一标记,如:a。然后遍历所有的checkbox并且tag为a的则选定:Protected Sub chkAll_Click() For Each ctl As Control In Me.Controls ''如果checkbox在一个容器里,比如groupbox,那可以用groupbox.controls

If ctl.GetType().Name.ToLower() = "checkbox" Then

CType(ctl, CheckBox).Checked = CheckBox3.Checked

End If

NextEnd Sub

vb.net的问题,编程实现将一个3*4的二维数组A,转置后在textbox中显示

for i = 0 to 3

textbox_未知.text = a(i,1) a(i,2) a(i,3) a(i,4) vbcrlf

next

如果我吧长宽弄反了自行转正,

如果要间隔,请插入 VBtab

vb.net数组逆序的程序

参考

#includestdio.h

int main()

{int n,i,j,t,a[200];

printf("数组中数的个数:");

scanf("%d",n);

printf("数组中的数:\n");

for(i=0;in;i++)

{

a[i]=i+1;

printf("%d ",a[i]);

}

for(i=0,j=n-1;ij;i++,j--)

{t=a[i];a[i]=a[j];a[j]=t;}

printf("\n逆序后的数组:\n");

for(i=0;in;i++)

printf("%d ",a[i]);

printf("\n");

getch();

return 0;

}


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