for (int i = 0; i < 5; i++)
            {
                tmp = ra.Next(minValue, maxValue); //随机取数
                arrNum[i] = getNum(arrNum, tmp, minValue, maxValue, ra); //取出值赋到数组中
               
            }

            MemoryStream ms0 = new MemoryStream(FromDataBase(arrNum[0]));
            MemoryStream ms1 = new MemoryStream(FromDataBase(arrNum[1]));
            MemoryStream ms2 = new MemoryStream(FromDataBase(arrNum[2]));
            MemoryStream ms3 = new MemoryStream(FromDataBase(arrNum[3]));
            MemoryStream ms4 = new MemoryStream(FromDataBase(arrNum[4]));
            pictureBox1.Image = Image.FromStream(ms0, true);
            label1.Text = GetNameFromDateBase(arrNum[0]);
            pictureBox2.Image = Image.FromStream(ms1, true);
            label2.Text = GetNameFromDateBase(arrNum[1]);
            pictureBox3.Image = Image.FromStream(ms2, true);
            label3.Text = GetNameFromDateBase(arrNum[2]);
            pictureBox4.Image = Image.FromStream(ms3, true);
            label4.Text = GetNameFromDateBase(arrNum[3]);
            pictureBox5.Image = Image.FromStream(ms4, true);
            label5.Text = GetNameFromDateBase(arrNum[4]);

            for (int i = 0; i < 5; i++)
            {
                tmp = ra.Next(minValue, maxValue); //随机取数
                arrNum[i] = getNum(arrNum, tmp, minValue, maxValue, ra); //取出值赋到数组中
                ms[i] = new MemoryStream(FromDataBase(arrNum[i]));
            }
            pictureBox1.Image = Image.FromStream(ms[0], true);
            label1.Text = GetNameFromDateBase(arrNum[0]);
            pictureBox2.Image = Image.FromStream(ms[1], true);
            label2.Text = GetNameFromDateBase(arrNum[1]);
            pictureBox3.Image = Image.FromStream(ms[2], true);
            label3.Text = GetNameFromDateBase(arrNum[2]);
            pictureBox4.Image = Image.FromStream(ms[3], true);
            label4.Text = GetNameFromDateBase(arrNum[3]);
            pictureBox5.Image = Image.FromStream(ms[4], true);
            label5.Text = GetNameFromDateBase(arrNum[4]);
        }
修改了一下，如何将picturebox与label放到循环中？

这方法不错

具体咋实现，可以演示一下吗