微信抢红包ASP.NET代码轻松实现

/// <summary>
 /// 余数处理
 /// </summary>
 /// <param name="money"></param>
 /// <param name="list"></param>
 /// <returns></returns>
 public List<int> checklist(int money, int pjs, List<int> list)
 {
  if (money != 0)
  {
  if (money > 0)
  {

   List<int> list_order = maopao(list);
   //给最小
   if (money / pjs == 0)
   {   
   list_order[0] += money;
   }
   else
   {
   for (int i = 0; i < money / pjs + 1; i++)
   {
    if (i == money / pjs)
    {
    list_order[i] += (money - (money / pjs) * pjs);
    }
    else
    {
    list_order[i] += pjs;
    }

   }
   }
   return list_order;
  }
  else
  {

   List<int> list_order = maopao(list,"desc");
   //给最大
   if (money / pjs == 0)
   {

   list_order[0] += money;
   }
   else
   {
   for (int i = 0; i < -(money / pjs) + 1; i++)
   {
    if (i == -(money / pjs))
    {
    list_order[i] += (money - (money / pjs) * pjs);
    }
    else
    {
    list_order[i] -= pjs;
    }

   }
   }
   return list_order;
  }
  }
  return list;
 }

 /// <summary>
  /// 冒泡排序
  /// </summary>
  /// <param name="list"></param>
  /// <param name="order"></param>
  /// <returns></returns>
  public List<int> maopao(List<int> list,string order = "asc")
  {
  if (order != "asc")
  {
   for (int i = 0; i < list.Count; i++)
   {
   for (int j = 0; j < list.Count - i - 1; j++)
   {
    if (list[j + 1] > list[j])
   {
    int temp = list[j];
    list[j] = list[j + 1];
    list[j + 1] = temp;
 
    }
   }
   }
  }
  else 
  {
   for (int i = 0; i < list.Count; i++)
   {
   for (int j = 0; j < list.Count-i-1;j++)
   {
    if (list[j+1] < list[j])
    {
    int temp = list[j];
    list[j] = list[j+1];
    list[j+1] = temp;

   }
   }
  }
  }
  return list;
 }

/// <summary>
 /// 打乱顺序
  /// </summary>
  /// <param name="list"></param>
  /// <returns></returns>
 public List<int> suiji(List<int> list) 
  {
  Random rnd = new Random();
  for (int i = 0; i < list.Count; i++)
  {
   int temp = list[i];
   int j = rnd.Next(0, list.Count-1);
   list[i] = list[j];
   list[j] = temp;
  }
  return list;
 }

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