VB.net 数组怎么按任意元素的顺序排序输出vb.net输出数组你直接传一个数组进去vb.net输出数组 , 而且是一个结构体数组,array.sort怎么知道根据结构中的哪一个属性进行排序?放一个c#的代码你看看,VB和C#很相似的
class Program
{
static void Main(string[] args)
{
People[] p = new People[3]
{
new People{name="张三"},
new People{name="李四"},
new People{name="张二名"}
};
//重点传一个实现vb.net输出数组了IComparer接口的类进去 , 告诉Array.Sort怎么排序
Array.Sort(p, new PeopleCompare());
foreach (var item in p)
{
Console.WriteLine(item.name);
}
Console.ReadKey();
}
}
//People结构体,换成类一样的
public struct People
{
public string name { get; set; }
}
//实现了IComparer接口的类
public class PeopleCompare : IComparer
{
public int Compare(object x, object y)
{
People p1 = (People)x ;
People p2 = (People)y;
return p1.name.CompareTo(p2.name);
}
}
vb.net求教把datatable的值输出成二维数组我觉得你这么做有问题
其实只要用for 循环 把datatable的值一个个取出来计算
然后把结果保存在一个数组里面久可以了
很简单的
vb.net输出数组1.你说的这个有点问题,是要只输出一次,也可做,
2.但问题是如果你数组还有就看不到了!这个做法有点问题
1.解决方法:
循环前面加入一个变量dim Temp as Double=0
For i = 0 To 9
If score(i)avg and score(i)temp Then
TextBox3.Text = TextBox3.Textscore(i)" "
if score(i)=avg then
temp=score(i)
end if
End If
Next
在VB.net中,如何使几个数组变量按照列表示出来,并输出到指定的EXCEL表格中!先在: My Project 中引用 Microsoft Excel 11.0 Object Library(这个是Excel 2003vb.net输出数组,Excel 2007 是12.0),之后在窗体代码中加入相关内容就行了 。以下是一个窗体vb.net输出数组的简单实例
假设在C盘根文件夹中有:TEST.xls
Public Class 引用EXCEL窗体
Private A() As String = {"A", "B", "CC", "C", "D"}
Private B() As Integer = {1, 22, 34, 50, 16, 99, 14}
Private excelapp As New Microsoft.Office.Interop.Excel.Application
Private excelworkbook As Microsoft.Office.Interop.Excel.Workbook
Private Sub 引用EXCEL_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim Index As Integer
excelworkbook = excelapp.Workbooks.Open("c:\test.xls")
excelapp.Application.Workbooks.Add(True)
excelapp.Cells(1, 1) = "数组:A"
For Index = 0 To UBound(A)
excelapp.Cells(Index2, 1) = A(Index)
Next
excelapp.Cells(1, 2) = "数组:B"
For Index = 0 To UBound(B)
excelapp.Cells(Index2, 2) = B(Index)
Next
excelapp.Visible = True
End Sub
End Class
运行结果:
数组:A 数组:B
A 1
B 22
CC 34
C 50
D 16
99
14
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; is.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; ioutput.Count; i)
{
Console.Write(output[i].ToString()" ");
}
Console.Write("\r\n");
count;
return;
}
else
{
for (int i = 0; iarray.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vb.net输出数组,没注意VB,用C#写的 。。。
输出了的,vb.net输出数组你新建一个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 = count1
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
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