VB.NET 如何将ListBox列表框的所有项复制到一个数组中，便于排序？谢谢解答

Public Class Form1

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

Dim ListboxTotalItem As Integer = ListBox1.Items.Count - 1

Dim a(ListboxTotalItem) As String

For i As Integer = 0 To ListboxTotalItem

a(i) = i

Next

Label1.Text = a(5)

End Sub

End Class

-------------

一个Form1

一个Label1

一个Listbox1

一个Button1

在Listbox1中加入10个值

-------------

只是一个演示，其他的要靠自己。

vb.net变成 数组组合情况输出问题

using System;

using System.Collections.Generic;

using System.Text;

namespace ConsoleApplication42

{

class Program

{

static void Main(string[] args)

{

count = 0;

String[] s = Console.ReadLine().Split(' ');

int[] array = new int[s.Length];

for (int i = 0; i s.Length; i++)

{

array[i] = Convert.ToInt32(s[i]);

}

int m = Convert.ToInt32(Console.ReadLine());

Listint arraylist = new Listint();

arraylist.AddRange(array);

Output(arraylist, m, null);

Console.WriteLine("共有" + count.ToString() + "个");

Console.ReadKey();

}

static int count = 0;

static void Output(Listint array, int m, Listint output)

{

if (output == null)

output = new Listint();

if (m == 0)

{

for (int i = 0; i output.Count; i++)

{

Console.Write(output[i].ToString() + " ");

}

Console.Write("\r\n");

count++;

return;

}

else

{

for (int i = 0; i array.Count; i++)

{

Listint output2 = new Listint();

output2.AddRange(output.ToArray());

output.Add(array[i]);

Listint array2 = new Listint();

array2.AddRange(array.ToArray());

for (int j = 0; j = i; j++)

{

int number = array[j];

array2.Remove(number);

}

Output(array2, m - 1, output);

output.Clear();

output.AddRange(output2.ToArray());

}

}

}

}

}

额，没注意VB，用C#写的。。。

输出了的，你新建一个C#控制台程序，把这段贴进去，运行一下就知道了

先输入一组字符串，然后输入一个整数，就会把所有的组合输出出来

我把这段转成VB再发一次吧

Module Module1

Sub Main()

count = 0

Dim s As String() = Console.ReadLine().Split(" ")

Dim array(0 To s.Length - 1) As Integer

For i As Integer = 0 To s.Length - 1

array(i) = Convert.ToInt32(s(i))

Next

Dim m As Integer = Convert.ToInt32(Console.ReadLine())

Dim arraylist As New List(Of Integer)

arraylist.AddRange(array)

Print(arraylist, m, Nothing)

Console.WriteLine("共有" + count.ToString() + "个")

Console.ReadKey()

End Sub

Sub Print(ByRef array As List(Of Integer), ByVal m As Integer, ByRef output As List(Of Integer))

If output Is Nothing Then

output = New List(Of Integer)()

End If

If m = 0 Then

For i As Integer = 0 To output.Count - 1

Console.Write(output(i).ToString() + " ")

Next

Console.Write(vbCrLf)

count = count + 1

Return

Else

For i As Integer = 0 To array.Count - 1

Dim array2 As New List(Of Integer)

Dim output2 As New List(Of Integer)

output2.AddRange(output.ToArray())

output.Add(array(i))

array2.AddRange(array.ToArray())

For j As Integer = 0 To i

Dim number As Integer = array(j)

array2.Remove(number)

Next

Print(array2, m - 1, output)

output.Clear()

output.AddRange(output2.ToArray())

Next

End If

End Sub

Dim count As Integer = 0

End Module

vb.net 两个数组拼接添加进listbox,结果只添加了第一个数组，第二个数组丢失了，这是怎么回事，在线等答案

S_chflag1(n) = Zonename(str_qy) ":" Chname1(str_xd)

字符串拼接尽量不用加号

求大神指点 vb.net 怎么把 几个字节集 连接起来呢? 我用 +和 & 都报错

Dim a As Byte() = New Byte() {1, 2, 3, 4}

Dim b As Byte() = New Byte() {5, 6, 7, 8}

Dim c As Byte() = a.Concat(b).ToArray

'c={1,2,3,4,5,6,7,8}

VB 怎样加将两个数组合并

Private Sub Command1_Click()

a = Array(1, 2, 4, 7, 9, 34, 65, 73, 78, 99, 234, 1234)

b = Array(0, 23, 33, 56, 78, 98, 99, 234, 1000, 9999)

Dim c(30)

i = 0

j = 0

k = 0

While i = UBound(a) And j = UBound(b)

If a(i) b(j) Then

c(k) = a(i)

i = i + 1

Else

c(k) = b(j)

j = j + 1

End If

k = k + 1

Wend

While i UBound(a)

c(k) = a(i)

i = i + 1: k = k + 1

Wend

While j UBound(b)

c(k) = b(j)

j = j + 1: k = k + 1

Wend

Print "原A数组："

For i = 0 To UBound(a)

Print a(i);

Next i

Print

Print "原B数组："

For i = 0 To UBound(b)

Print b(i);

Next i

Print

Print "合并后的c数组："

For i = 0 To k

Print c(i);

If i Mod 15 = 14 Then Print

Next i

Print

End Sub

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