int[] arr = new int[10]; Random r = new Random(System.DateTime.Now.Millisecond); for (int i = 0; i < 10; i++) { arr[i]=r.Next(); }
using System; using System.Collections.Generic; using System.Text; class Program { static void Main(string[] args) {
Random randObj = new Random(); for( int i = 0; i < 10; i++ ) Console.Write( " {0,10} ", randObj.Next( ) ); Console.WriteLine( ); } }
using System; using System.Collections.Generic;class Program { static void Main() { int N = 10; Random r = new Random(); List<int> l = new List<int>(N); for (int i = 0; i < N;) { int x = r.Next(); if (!l.Contains(x)) { i++; l.Add(x); Console.WriteLine(x); } } } }
int[] arr=getRandomNum(6,1,34);//从1至33中取出6个互不相同的随机数 string temp=""; for(int i=0;i<=arr.Length-1;i++) temp+=arr[i].ToString()+" "; int[] arr1=getRandomNum(1,1,17); string temp1=arr1[0].ToString(); label1.Text=temp; label2.Text=temp1; public int[] getRandomNum(int num,int minValue,int maxValue) { Random ra=new Random(unchecked((int)System.DateTime.Now.Ticks)); int[] arrNum=new int[num]; int tmp=0; for (int i=0;i<=num-1;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 } return arrNum; } public int getNum(int[] arrNum,int tmp,int minValue,int maxValue,Random ra) { //Random ra=new Random(unchecked((int)DateTime.Now.Ticks)); int n=0; while (n<=arrNum.Length-1)//利用循环判断是否有重复 { if (arrNum[n]==tmp) { tmp=ra.Next(minValue,maxValue); //重新随机获取 getNum(arrNum,tmp,minValue,maxValue,ra);//递归:如果取出来的数字和已取得的数字有重复就重新随机获取 } n++; } return tmp; }
int[] arr = new int[10];
Random r = new Random(System.DateTime.Now.Millisecond);
for (int i = 0; i < 10; i++)
{
arr[i]=r.Next();
}
using System.Collections.Generic;
using System.Text; class Program
{
static void Main(string[] args)
{
Random randObj = new Random();
for( int i = 0; i < 10; i++ )
Console.Write( " {0,10} ", randObj.Next( ) );
Console.WriteLine( ); }
}
using System.Collections.Generic;class Program
{
static void Main()
{
int N = 10;
Random r = new Random();
List<int> l = new List<int>(N);
for (int i = 0; i < N;)
{
int x = r.Next();
if (!l.Contains(x))
{
i++;
l.Add(x);
Console.WriteLine(x);
}
}
}
}
string temp="";
for(int i=0;i<=arr.Length-1;i++)
temp+=arr[i].ToString()+" ";
int[] arr1=getRandomNum(1,1,17);
string temp1=arr1[0].ToString();
label1.Text=temp;
label2.Text=temp1;
public int[] getRandomNum(int num,int minValue,int maxValue)
{
Random ra=new Random(unchecked((int)System.DateTime.Now.Ticks));
int[] arrNum=new int[num];
int tmp=0;
for (int i=0;i<=num-1;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
}
return arrNum;
}
public int getNum(int[] arrNum,int tmp,int minValue,int maxValue,Random ra)
{
//Random ra=new Random(unchecked((int)DateTime.Now.Ticks));
int n=0;
while (n<=arrNum.Length-1)//利用循环判断是否有重复
{
if (arrNum[n]==tmp)
{
tmp=ra.Next(minValue,maxValue); //重新随机获取
getNum(arrNum,tmp,minValue,maxValue,ra);//递归:如果取出来的数字和已取得的数字有重复就重新随机获取
}
n++;
}
return tmp;
}