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vb.net數(shù)組倒序,C#數(shù)組倒序

VB.NET是否有數(shù)組排序方法

游戲中遇到這樣的問題,需要將一組已知的數(shù)據(jù)打亂,按照以前和現(xiàn)在的做法,總結(jié)了以下方法。

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方法一,最笨的菜鳥方法,也是容易想到的(幸好我沒想過這種方法 :))

從已知數(shù)組中隨機(jī)一個(gè)數(shù),然后加入到另一個(gè)數(shù)組中,在加入之前,先檢查是否已經(jīng)加入過。

這種方法有很大運(yùn)氣成分,且數(shù)據(jù)越大,效率越低,超過一定數(shù)目,則程序幾乎無法執(zhí)行,會(huì)一直卡在那里,代碼:

[java] view plain copy

package com.test;

import java.util.Random;

public class TestArray {

public static int runCount =0;//用于記錄方法運(yùn)算次數(shù)

VB.NET數(shù)組的排序法?

如果你是從vb6剛過渡上vb。net,建議還是用冒泡排序法,容易理解。

如果你正努力學(xué)習(xí)vb。net的方法,推薦一個(gè)例子如下:

Imports System

Imports System.Collections

Public Class SamplesArray

Public Class myReverserClass

Implements IComparer

' Calls CaseInsensitiveComparer.Compare with the parameters reversed.

Function Compare(x As Object, y As Object) As Integer _

Implements IComparer.Compare

Return New CaseInsensitiveComparer().Compare(y, x)

End Function 'IComparer.Compare

End Class 'myReverserClass

Public Shared Sub Main()

' Creates and initializes a new Array and a new custom comparer.

Dim myArr As [String]() = {"The", "QUICK", "BROWN", "FOX", "jumps", "over", "the", "lazy", "dog"}

Dim myComparer = New myReverserClass()

' Displays the values of the Array.

Console.WriteLine("The Array initially contains the following values:")

PrintIndexAndValues(myArr)

' Sorts a section of the Array using the default comparer.

Array.Sort(myArr, 1, 3)

Console.WriteLine("After sorting a section of the Array using the default comparer:")

PrintIndexAndValues(myArr)

' Sorts a section of the Array using the reverse case-insensitive comparer.

Array.Sort(myArr, 1, 3, myComparer)

Console.WriteLine("After sorting a section of the Array using the reverse case-insensitive comparer:")

PrintIndexAndValues(myArr)

' Sorts the entire Array using the default comparer.

Array.Sort(myArr)

Console.WriteLine("After sorting the entire Array using the default comparer:")

PrintIndexAndValues(myArr)

' Sorts the entire Array using the reverse case-insensitive comparer.

Array.Sort(myArr, myComparer)

Console.WriteLine("After sorting the entire Array using the reverse case-insensitive comparer:")

PrintIndexAndValues(myArr)

End Sub 'Main

Public Shared Sub PrintIndexAndValues(myArr() As [String])

Dim i As Integer

For i = 0 To myArr.Length - 1

Console.WriteLine(" [{0}] : {1}", i, myArr(i))

Next i

Console.WriteLine()

End Sub 'PrintIndexAndValues

End Class 'SamplesArray

'This code produces the following output.

'

'The Array initially contains the following values:

' [0] : The

' [1] : QUICK

' [2] : BROWN

' [3] : FOX

' [4] : jumps

' [5] : over

' [6] : the

' [7] : lazy

' [8] : dog

'

'After sorting a section of the Array using the default comparer:

' [0] : The

' [1] : BROWN

' [2] : FOX

' [3] : QUICK

' [4] : jumps

' [5] : over

' [6] : the

' [7] : lazy

' [8] : dog

'

'After sorting a section of the Array using the reverse case-insensitive comparer:

' [0] : The

' [1] : QUICK

' [2] : FOX

' [3] : BROWN

' [4] : jumps

' [5] : over

' [6] : the

' [7] : lazy

' [8] : dog

'

'After sorting the entire Array using the default comparer:

' [0] : BROWN

' [1] : dog

' [2] : FOX

' [3] : jumps

' [4] : lazy

' [5] : over

' [6] : QUICK

' [7] : the

' [8] : The

'

'After sorting the entire Array using the reverse case-insensitive comparer:

' [0] : the

' [1] : The

' [2] : QUICK

' [3] : over

' [4] : lazy

' [5] : jumps

' [6] : FOX

' [7] : dog

' [8] : BROWN

vb.net數(shù)組逆序的程序

參考

#includestdio.h

int main()

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

printf("數(shù)組中數(shù)的個(gè)數(shù):");

scanf("%d",n);

printf("數(shù)組中的數(shù):\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逆序后的數(shù)組:\n");

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

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

printf("\n");

getch();

return 0;

}

VB.NET中字符串倒序的問題

好象有個(gè)StrReverse函數(shù)是直接反轉(zhuǎn)字符串的吧..

我平時(shí)用的是VB6.但是.NET中應(yīng)該也是可以用MID的

你注意看FOR 是從len-1到0的..而mid中是不允許出現(xiàn)0的..

你看看MID運(yùn)行不了時(shí),是不是返回I是0的時(shí)間

改成:

For i = Len(sstr) To 1 Step -1

試試了?

本文題目:vb.net數(shù)組倒序,C#數(shù)組倒序
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