随机数生成？

xwyxwyujj 2011-01-10 02:53:25

随机生成100个6位到10位的随机数
有重复的去掉这个方法怎么写啊？

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Hertz_liu 2011-01-10

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void Main()

{

  for(int i=0;i<100;i++)

  {

    Console.WriteLine(Guid.NewGuid().ToString().Replace("-","").Substring(0,6));

  }

}

以上是一楼的代码，我觉得再1楼的改进一下，就能100%满足楼主的要求了。



void Main()

{

  for(int i=0;i<100;i++)

  {

    //加一个随机6-10的数字

     Random ran=new Random();

     int len=ran.Next(6,10);    

     Console.WriteLine(Guid.NewGuid().ToString().Replace("-","").Substring(0,len));

  }

}

rczjp 2011-01-10

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int[] iarr = new int[100];

            ArrayList arrlist = new ArrayList();

            Random rnd = new Random();

            while (arrlist.Count <= 100)

            {

                int num = rnd.Next(100000, int.MaxValue);

                if (!arrlist.Contains(num))

                {

                    arrlist.Add(num + " ");

                }

            }

            for (int i = 0; i < 100; i++)

            {

                Console.Write(arrlist[i]);

            }

EvenWen 2011-01-10

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static void Main(string[] args)
{
Random dr = new Random();
List<int> list = new List<int>(101);
for (int k = 0; k <=list.Count; k++)
{
for (int i = 0; i <= list.Count; i++)
{
int resut = dr.Next(100000, 99999999);
for (int j = 0; j <= list.Count; j++)
{
if (!list.Contains(resut))
{
list.Add(resut);

}

}

}

Console.WriteLine(list[k]+"\n");
}

}

EvenWen 2011-01-10

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callmesai 2011-01-10

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private static char[] constant_justNumber ={ '0','1','2','3','4','5','6','7','8','9'};





        /// <summary>

        /// 生成随机数

        /// </summary>

        /// <param name="Length"></param>

        /// <param name="Count"></param>

        /// <param name="hasBig"></param>

        /// <returns></returns>

        public static string[] GenerateRandom(int Length, int Count)

        {

            int myLength = constant_justNumber.Length;

            char[] constant = new char[myLength];

            string[] myOutArr = new string[Count];





            System.Text.StringBuilder newRandom = new System.Text.StringBuilder(constant.Length);

            Random rd = new Random();

            for (int j = 0; j < Count; j++)

            {

                for (int i = 0; i < Length; i++)

                {

                    newRandom.Append(constant[rd.Next(constant.Length)]);

                }

                myOutArr[j] = newRandom.ToString();

                newRandom.Remove(0, Length);

            }

            



            return myOutArr;

        }



        protected void Button1_Click(object sender, EventArgs e)

                string[] myArr = GenerateRandom(10, 100);

                int h = 0;      

                foreach (string w in myArr)

                {

                    h++;

                    Response.Write(w + "<br/>");

                    

                }

                Response.End();

        }

逆向 2011-01-10

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections.Generic;

public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
test();
}
}
private void test()
{
Random rdm = new Random();
List<string> list = new List<string>();
for (int i = 1; i > 0; i++) //死循環在for裏面用if(list.Count < 100)來控制跳出循環
{
string temp = "";
if (list.Count < 100)
{
int a = rdm.Next(6, 11);//随机来控制生产几位数的随机数
#region 根据a(位数)来(生成0到9的数字)组合随机数
for (int b = 0; b < a; b++)
{
temp += rdm.Next(0, 9).ToString();
}
#endregion

#region 判斷當前生成的隨機數和之前的是否重複
for (int j = 0; j < list.Count; j++)
{
if (list[j].Equals(temp))
{
list.Remove(temp); //當重複的時候remove存在的
}
}
list.Add(temp);
#endregion
}
else
{
break; //生成完100個隨機數跳出for
}
}
foreach (string m in list)
{
Response.Write(m.ToString()+"<BR>");
}
}
}

//看我如此细心分也是我的了

laowang134 2011-01-10

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额超出最大int值了。。
int result = rd.Next(100000, 2147483647);
楼主可以根据此方法组合成10位数

逆向 2011-01-10

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回复3楼
回复9楼

你们的好像不可能产生10位的随机数

laowang134 2011-01-10

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if (list.Count < 101)
应该是小于100

laowang134 2011-01-10

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去重复的



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace ConsoleApplication3

{

    class Program

    {

        static void Main(string[] args)

        {

            Random rd = new Random();

            List<int> list = new List<int>();

            for (int i = 0; i < 1000; i++)

            {

                if (list.Count < 101)

                {

                    int result = rd.Next(100000, 999999999);

                    for (int j = 0; j < list.Count; j++)

                    {

                        if (list[j] == result)

                        {

                            list.Remove(result);

                        }

                    }

                    list.Add(result);

                }

                else

                {

                    break;

                }

            }

            foreach (int i in list)

            {

                Console.WriteLine(i);

            }

        }

    }

}

laowang134 2011-01-10

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static void Main(string[] args)
{
Random rd=new Random();
List<int> list=new List<int>();
for(int i=0;i<1000;i++)
{
if(list.Count<101)
{
int result=rd.Next(100000,999999999);
for(int j=0;j<list.Count;j++)
{
if(list[j]==result)
{
list.Remove(result);
}
}
list.Add(result);
}
else
{
break;
}
}
foreach (int i in list)
{ Console.WriteLine(i); }
}

wuyq11 2011-01-10

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Random rand = new Random(Guid.NewGuid().GetHashCode());
rand .Next(最小值,最大值)
Random rnd = new Random(DateTime.Now.Millisecond);

Enumerable.Range(1, 100).OrderBy(Guid.NewGuid());
for (int i = 0; i <= 9; i++)
{
Console.WriteLine(rand.Next(1,100));
}

Enumerable.Range(1, 10).OrderBy(Guid.NewGuid());

守护欢笑 2011-01-10

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[Quote=引用 3 楼 q107770540 的回复:]
C# code

void Main()
{
Random rd=new Random();
for(int i=0;i<100;i++)
{
Console.WriteLine(rd.Next(100000,999999999).ToString());
}
}

/*
612809168
307026325
238081079
835900550
……
[/Quote] +1

xwyxwyujj 2011-01-10

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重复的怎么去掉呢

q107770540 2011-01-10

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void Main()

{

Random rd=new Random();

  for(int i=0;i<100;i++)

  {

  Console.WriteLine(rd.Next(100000,999999999).ToString());

  }

}



/*

612809168

307026325

238081079

835900550

58182993

968161134

865417802

91417747

359756267

669914075

476542297

140429046

73965256

335856911

150959830

489977153

707831345

857504989

418352885

46806794

883680

924778950

936652240

67844623

797614593

34880721

959088475

281230786

253769050

557078969

952499867

127289537

98133238

242658759

215979328

259152563

889214270

285335260

383666935

230718403

416753301

51368580

360718244

168791762

864311800

858096752

205983516

155920300

543153219

841802429

345607692

708887622

967286605

461155477

31978985

688030216

370374084

170336455

38385956

23402272

9172659

584287016

837648696

802677297

717414207

349352759

42395808

831306495

119977583

891807266

600762881

422596084

473938053

187734481

630053492

949515098

564160706

767960478

203532822

939517840

828897204

803268175

738077565

411966620

211571277

243712244

160002931

636977760

210779774

527949110

888778477

718977814

247049304

360364663

221645743

832466283

213719883

558040946

451377553

515059040



*/

xwyxwyujj 2011-01-10

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随机数只有数字

q107770540 2011-01-10

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void Main()

{

  for(int i=0;i<100;i++)

  {

    Console.WriteLine(Guid.NewGuid().ToString().Replace("-","").Substring(0,6));

  }

}



/*

108efe

d7df9b

a1ce80

6edaaf

68bc2c

e3e5cb

f9754c

525dbd

ef71dd

fe4d99

fc493b

967fed

ee3dca

29a83f

f954ed

3213bd

08967a

61bce0

220ff0

2adda3

a28526

3c9005

1d31d9

17a6c7

a9c88e

fc5f50

7460a6

499919

4b7cfe

59e4fd

4ded30

afbfbb

79be83

af3b7e

b3ed20

0f5696

82e573

3d9911

2e489a

b708b2

4c6b62

5c7a03

6082b5

ccd0dd

f40410

aff068

946d07

2bb6e0

dfc234

35bc51

ee96f7

1b5448

1c0f8e

71eeef

b3184c

613b8e

2ed09c

7f2e82

77459d

1445b9

713440

eef8a1

2b5047

0de640

5f7700

ebd258

aedfbc

ecfaca

08fe4d

87efeb

e8e800

55f2e7

2d8730

c9eb03

66b69d

85126a

c43162

bbfaea

12dbe0

ee1c17

b51d42

0bfd0c

d57fb6

439f80

096b98

3e6130

bd64f7

f60560

43a601

b2f192

551229

f395e5

a94ee8

6ff113

464696

cd4c08

5a4a1f

d273d0

e46a69

d4bfea



*/