[引]用c#产生1-100之间的不重复的随机数,并且可进行降序 升序排序
本文转自:http://hi.baidu.com/chenyaom/item/a1b53994a54e2e4af14215ea
class Program
{
static void Main(string[] args)
{
int[] Arr = new int[100];
Random random = new Random();
for (int i = 0; i < Arr.Length; i++)
{
Arr[i] = GetRandomNum(Arr, random);
}
for (int i = 0; i < 1000; i++)
{
//Console.WriteLine(random.Next(101));//这种会产生0-100之间的数,返回一个小于指定数的非负随机数
//Console.WriteLine(random.Next(1,101));//这种会产生1-100之间的数
}
sortArr(Arr, false);
foreach (var item in Arr)
{
Console.WriteLine(item);
}
}
private static int GetRandomNum(int[] Arr, Random random)
{
int tempValue = random.Next(1, 101);
if (Arr.Contains(tempValue))
{
tempValue = GetRandomNum(Arr, random);
}
return tempValue;
}
private static int GetRandomNum2(int[] Arr, Random random)
{
int tempValue = random.Next(1, 100);
while (!Arr.Contains(tempValue))
{
tempValue = random.Next(1, 100);
}
return tempValue;
}
static void sortArr(int[] Arr, bool orderby)
{
for (int i = 0; i < Arr.Length; i++)
{
for (int j = i + 1; j < Arr.Length; j++)
{
if (orderby)
{
if (Arr[i] > Arr[j])
{
Arr[i] = Arr[j] + (Arr[j] = Arr[i]) * 0;
}
}
else
{
if (Arr[i] < Arr[j])
{
Arr[i] = Arr[j] + (Arr[j] = Arr[i]) * 0;
}
}
}
}
}
}
posted on 2013-04-11 10:29 freeliver54 阅读(3467) 评论(0) 编辑 收藏 举报