小编Kar*_*lis的帖子

我要制作显示图片的应用程序。我想添加“删除”功能，但我遇到了问题。问题是图片之间的差距。我想删除它们。

例如：

我有这样的数组：
{1 = image_1, 2 = image_2, 3 = image_3}

当我删除 image_2 时，我有：
{1 = image_1, 2 = nil, 3 = image_3}

我想要：
{1 = image_1, 2 = Image_3}

代码：

Public Class Form1
Dim latestImageId As Integer = 0
Dim dispPictureId As Integer = 0
Dim images(128) As Image

Private Sub CapturePic(sender As Object, e As EventArgs) Handles TestToolStripMenuItem.Click
    If My.Computer.Clipboard.ContainsImage() Then
        latestImageId = (latestImageId + 1)
        images(latestImageId) = My.Computer.Clipboard.GetImage()
        If dispPictureId = 0 Then
            Label1.Text = dispPictureId …

当我尝试设置/打开注册表项时,我得到了异常:

Requested registry access is not allowed.

我可以设置requestedExecutionLevel密钥requireAdministrator,但我不希望每次,当应用程序启动时看到管理员提示.有些用户没有管理员权限.它非常适合按需请求管理员权限.

代码我已经尝试过:

Dim regStartUp As RegistryKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\Microsoft\Windows\CurrentVersion\Run", True)
Dim value As String
value = regStartUp.GetValue("App")
If value <> Application.ExecutablePath.ToString() & " startup" Then
    regStartUp.CreateSubKey("App")
    regStartUp.SetValue("App", Application.ExecutablePath.ToString() & " startup")
End If
Dim CommandLineArguments As String() = Environment.GetCommandLineArgs()
Dim i As Integer
Dim hideme As Boolean = False
For i = 0 To CommandLineArguments.GetUpperBound(0)
    Console.WriteLine(CommandLineArguments(i) & vbCrLf)
    If CommandLineArguments(i).ToLower() = "startup" Then
        hideme = True
    End If
Next
If …

我有一个小问题......

它是左上角的网页角落.在那里我有一个div背景,div距边缘几个像素.

我的代码:

HTML

<div id="contcont"></div>

CSS

#contcont{
  width: 100% ;
  height: 100%;
  background-color: rgb(0,0,255);
  background-image:url('bg.jpg');
  background-size: cover;
  background-repeat: no-repeat;
  top:0;
  bottom: 0;
  left: 0;
  right: 0;
}

我怎样才能消除这个差距？