switch (filePath.Length)
            {
                case 1:
                      if (filePath[0].IndexOf("bmp") > -1)
                            pictureBox1.Image = Image.FromFile(filePath[0]);

                    break;
                case 2:
                      if (filePath[0].IndexOf("bmp") > -1)
                            pictureBox1.Image = Image.FromFile(filePath[0]);
                        if (filePath[1].IndexOf("bmp") > -1)
                            pictureBox2.Image = Image.FromFile(filePath[1]);
                    break;
这段代码只能显示bmp格式的图片，我想让它同时能显示JPG格式的文件，怎么写代码？

谁能帮帮忙啊

没有高手帮忙么。。。

把判断语句改一下呢，加上||

Random rand = new Random();
                            i = rand.Next(4);
                            switch (i)
                            {
                                case 0: pictureBox1.Load("file:///D:/c05/1.jpg");
                                    label3.Text = "1";
                                    break;
                                case 1: pictureBox1.Load("file:///D:/c05/2.jpg");
                                    label3.Text = "2";
                                    break;
                                case 2: pictureBox1.Load("file:///D:/c05/3.jpg");
                                    label3.Text = "3";
                                    break;
                                case 3: pictureBox1.Load("file:///D:/c05/4.jpg"); label3.Text = "1";
                                    break;
                            }
                            i++;
图片这样写试试