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？

把picturebox和label都定义为数组就比较适合放在循环中了？！

            MemoryStream ms;
            PictureBox[] _pictureBox= new PictureBox[5] {PictureBox1,PictureBox2,PictureBox3,PictureBox4,PictureBox5 };
            Label[] _label=new Label[5]{Label1,Label2,Label3,Label4,Label5};
            try
            {
                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=new MemoryStream(FromDataBase(arrNum[i]));
                           pictureBox[i].Image =Image.FromStream(ms, true);
                           label[i].Text=GetNameFromDateBase(arrNum[i]);

               }//for(i)结束
            }
            catch
            {
            }
            final
            {
            ms=null;
            }

[ 本帖最后由 wangnannan 于 2010-10-11 10:39 编辑 ]

反射.   

这方法不错

具体咋实现，可以演示一下吗

 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]));

    System.Reflection.FieldInfo   fieldInfo =   this.GetType().GetField( "pictureBox" + (i+1).ToString());
    pictureBox picbox =   (pictureBox )fieldInfo.GetValue(this);
    picbox .Image = Image.FromStream(ms[i], true);
   
    System.Reflection.FieldInfo   fieldInfo =   this.GetType().GetField( "label" + (i+1).ToString());
    Label lb=   (Label )fieldInfo.GetValue(this);
    lb.Text = GetNameFromDateBase(arrNum[i]);
}

大概是这样的,没测试仪,是用的记事本写的.