如何通过数字生成随机图像
本文关键字:随机 图像 何通过 数字 | 更新日期: 2023-09-27 18:03:28
我正在制作一个应用程序,其中4个chit将被随机抛出。我完成了通过单击按钮生成随机数,随机数在1到4之间生成。
我的问题是我如何将4个图像与这些数字联系起来?假设1是随机出现的,那么应该显示1.jpg。我的编程语言是c#,在Visual studio 2012中工作。
public sealed partial class MainPage : Page
{
Random rand = new Random();
public MainPage()
{
this.InitializeComponent();
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
int num=rand.Next(1,5);
textblock1.Text=num.ToString();
}}}
我在一个文本块中显示数字。现在我有4个图像,我必须随机显示。
已使用此方法
private void Button_Click_1(object sender, RoutedEventArgs e)
{
Random rand = new Random();
int dice = rand.Next(1, 5);
switch (dice)
{
case 1:
Image1.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/1.png"));
break;
case 2:
two.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/2.png"));
break;
case 3:
three.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/3.png"));
break;
case 4:
four.Source = new BitmapImage(new Uri(@"ms-appx:///Assets/4.png"));
break;
}
}for bitmap image refrence will be "using Windows.UI.Xaml.Media.Imaging;"
您可以将生成的数字替换为文件名,如:
string.Format("{0}.jpg", generatedNumber);
非常少的代码,不需要'if'或'switch'。
我还将创建一个单独的组件(I)FileNameResolver,它包含确定正确文件名和错误处理的逻辑;在你的代码中使用它
怎么样:
Random rand = new Random();
Bitmap GetRandomImage(){
Bitmap bmp;
int n = rand.Next(0, 4);
if(n == 0)
bmp = new Bitmap("mypath1");
else if(n == 1)
bmp = new Bitmap("mypath2");
else if(n == 2)
bmp = new Bitmap("mypath3");
else
bmp = new Bitmap("mypath4");
return bmp;
}
或者你可以重命名你的文件,使用如下:
Random rand = new Random();
Bitmap GetRandomImage(){
int n = rand.Next(0, 4);
return new Bitmap(string.Format("mypath''{0}.jpg", n));
}
Random = new Random();int randomPosition = rand。下一个(0,9);
lblEnglish.Text = sw.EnglishHeartSentence[randomPosition];
lblShona.Text = sw.shonaSentence[randomPosition];
switch (randomPosition)
{
case 0:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.diarrhea_900x600px;
break;
case 1:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.hunger1; ;
break;
case 2:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.stomachache1;
break;
case 3:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.full_clipart_1;
break;
case 4:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.Top_10_Foods_To_Relieve_Menstrual_Cramps_1;
break;
case 5:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.preg;
break;
case 6:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.belly;
break;
case 7:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.a_man_with_visible_spine_holds_his_back;
break;
case 8:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.bell;
break;
case 9:
mainPicBox.Image = Funda_isizulu_.Properties.Resources.coffee_growl_905;
break;
}
er,
switch (number)
{
case 1:
return "1.jpg";
case 2:
return "2.jpg";
case 3:
return "3.jpg";
case 4:
return "4.jpg";
default:
throw ArgumentException("number");
}
看情况而定,
如何,
private static readonly WhateverTypeMyImagesNeedToBe[] images =
{
new WhateverTypeMyImagesNeedToBe("1.jpg"),
new WhateverTypeMyImagesNeedToBe("2.jpg"),
new WhateverTypeMyImagesNeedToBe("3.jpg"),
new WhateverTypeMyImagesNeedToBe("4.jpg")
}
private static WhateverTypeMyImagesNeedToBe GetRandomImage()
{
return images[new Random().Next(0, images.Length)];
}