js 设置body背景图片

body{background:url(<%=imgUrl%>) no-repeat top; margin:0px; padding:0px; font-size:12px; color:#525252;}

 

protected string imgUrl = "images/bag_1.jpg";

 

#region 生成不同随机数的方法
        /// <summary>
        /// 生成不同随机数的方法
        /// </summary>
        /// <param name="min">最小值</param>
        /// <param name="max">最大值</param>
        /// <param name="count">取xx个</param>
        /// <returns>int数组</returns>
        private  int GetRandom(int min, int max, int count)
        {
            int[] maxArray = new int[max];
            for (int i = 0; i < max; i++)
            {
                maxArray[i] = min + i;
            }
            int[] rArray = new int[count];
            Random rd = new Random();
            int temp = max;
            for (int i = 0; i < 1; i++)
            {
                int tIndex = rd.Next(0, temp);
                rArray[i] = maxArray[tIndex];
                maxArray[tIndex] = maxArray[--temp];
            }
            return rArray[0];
        }
        #endregion