使用c#在三个不同的图片框中加载三个图像

Question

我有一个维基百科API，通过它我可以从维基百科页面中提取三张图片。我想在三个 PictureBoxes 中显示这 3 个图像。但我真的不知道如何制作一个 for 循环来在三个不同的 PictureBox 中显示三个图像。这是我的代码

class Image
{
    public static PictureBox Image1 = new PictureBox();
    public static PictureBox Image2 = new PictureBox();
    public static PictureBox Image3 = new PictureBox();


    public static void Load_Image1()
    {
        using (var wc = new System.Net.WebClient())
        {
            var uri = ("https://en.wikipedia.org/w/api.php?action=query&prop=imageinfo&format=json&iiprop=url&iiurlwidth=400&titles=File%3ALuftbild%20Flensburg%20Schleswig-Holstein%20Zentrum%20Stadthafen%20Foto%202012%20Wolfgang%20Pehlemann%20Steinberg-Ostsee%20IMG%206187.jpg%7CFile%3AHafen%20St%20Marien%20Flensburg2007.jpg%7CFile%3ANordertor%20im%20Schnee%20(Flensburg%2C%20Januar%202014).JPG");
            var response = wc.DownloadString(new Uri(uri));
            var responseJson = JsonConvert.DeserializeObject<RootObject>(response);

            foreach (KeyValuePair<string, Pageval> entry in responseJson.query.pages)
            {
                var url = entry.Value.imageinfo.First().thumburl;
                for(int i; i<=3 ;i++)
                {

                }

            }

        }
    }
}

Answer 1

我猜您想将图片从 var url 加载到 PictureBox。如果是这种情况，您可以制作一个图片框数组或列表，然后循环该列表（或数组）。所以：

class Image
{
    public static PictureBox Image1 = new PictureBox();
    public static PictureBox Image2 = new PictureBox();
    public static PictureBox Image3 = new PictureBox();

    public static void Load_Image1()
    {
        List<PictureBox> pictureBoxes = new List<PictureBox>();
        pictureBoxes.Add(Image1);
        pictureBoxes.Add(Image2);
        pictureBoxes.Add(Image3);

        using (var wc = new System.Net.WebClient())
        {
            var uri = ("https://en.wikipedia.org/w/api.php?action=query&prop=imageinfo&format=json&iiprop=url&iiurlwidth=400&titles=File%3ALuftbild%20Flensburg%20Schleswig-Holstein%20Zentrum%20Stadthafen%20Foto%202012%20Wolfgang%20Pehlemann%20Steinberg-Ostsee%20IMG%206187.jpg%7CFile%3AHafen%20St%20Marien%20Flensburg2007.jpg%7CFile%3ANordertor%20im%20Schnee%20(Flensburg%2C%20Januar%202014).JPG");
            var response = wc.DownloadString(new Uri(uri));
            var responseJson = JsonConvert.DeserializeObject<RootObject>(response);

            List<string> urls = new List<string>();
            foreach (KeyValuePair<string, Pageval> entry in responseJson.query.pages)
            {
                var url = entry.Value.imageinfo.First().thumburl;
                urls.Add(url);                        
            }
            // if you're sure that you're getting always at least 3 images, this will work
            for(int i = 0; i < pictureBoxes.Count; i++)
            {
                pictureBoxes[i].Load(urls[i]);
            }
        }
    }
}

使用c#在三个不同的图片框中加载三个图像

Load three images in three different picture box using c#

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