我如何将数字从文本框放到数组中并对它们进行一些操作 [英] how i can putting numbers from text box to an array and do some operation on thoese

问题描述

我的朋友们:
我想从用户那里拿出10个数字，向我显示最小和最大的数字，我想用数组来做.在Windows应用程序中.请帮帮我.
谢谢，

hi my friends:
i want to take 10 numbers from user that show me the smallest and biggest number and i want to do it with array. in windows application. please help me.
thanks

推荐答案

好，我会帮您的，但是显示最大和最小值的算法必须您自己编写.
步骤:
1)创建新的Windows应用程序项目
2)在表格上:
-1个TextBox
-3个按钮(将名称更改如下:BtnAdd，BtnClear，BtnDisplayResults)
-1个ListBox
3)复制并粘贴以下代码:

OK, i''ll help you, but algorithm to display the biggest and smallest values, you must to write by yourself.
Steps to do:
1) Create new windows application project
2) On the form place:
- 1x TextBox
- 3x Buttons (change the names as follow: BtnAdd, BtnClear, BtnDisplayResults)
- 1x ListBox
3) copy and paste the code below:

Public Class Form1

    Dim numbers As List(Of Integer) = Nothing 'declare list of integer

    Public Sub New()

        ' This call is required by the Windows Form Designer.
        InitializeComponent()
        numbers = New List(Of Integer) 'initialize variable
        ' Add any initialization after the InitializeComponent() call.

    End Sub

    Protected Overrides Sub Finalize()
        numbers = Nothing
        MyBase.Finalize()
    End Sub

    Private Sub BtnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnAdd.Click
        Dim sText As String = String.Empty
        sText = Me.TextBox1.Text 'get text from TextBox
        numbers.Add(Integer.TryParse(sText, 0)) 'try to add parsed value
        Me.TextBox1.Text = String.Empty 'clear TextBox
        Me.TextBox1.Focus() 
        Me.ListBox1.Items.Add(sText)
    End Sub

    Private Sub BtnClear_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnClear.Click
        Me.ListBox1.Items.Clear()
        numbers.Clear()
    End Sub

    Private Sub BtnDisplayResults_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnDisplayResults.Click
        'here you need to write custom algorithm

    End Sub

End Class

4)编译项目

我使用: ListOf(T) [

4) Compile project

I use: ListOf(T)[^] to store numbers.

您所输入的代码需求在下面(您应该将值写在文本框内，并在文本框之间插入空格):

The codes that you need are below (You should write your values inside a textbox inserting spaces between them):

string[] strArray = TextBox1.Text.Split(' ');

int biggest = Int32.MinValue;
int smallest = Int32.MaxValue;

for (int i = 0; i < strArray.Length; i++)
{
    int intVal = Int32.Parse(strArray[i].Trim());

    if (intVal > biggest)
        biggest = intVal;

    if (intVal < smallest)
        smallest = intVal;
}

MessageBox.Show("The biggest: " + biggest.ToString() +
                ", The smallest: " + smallest.ToString());

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