public string RandomNum(int n) //
{
string strchar = "0,1,2,3,4,5,6,7,8,9" ;
string[] VcArray = strchar.Split(',') ;
string VNum = "" ;//由于字符串很短，就不用StringBuilder了
int temp = -1 ; //记录上次随机数值，尽量避免产生几个一样的随
{
string strchar = "0,1,2,3,4,5,6,7,8,9" ;
string[] VcArray = strchar.Split(',') ;
string VNum = "" ;//由于字符串很短，就不用StringBuilder了
int temp = -1 ; //记录上次随机数值，尽量避免产生几个一样的随
机数
//采用一个简单的算法以保证生成随机数的不同
Random rand =new Random();
for ( int i = 1 ; i < n+1 ; i++ )
{
if ( temp != -1)
{
rand =new Random(i*temp*unchecked((int)
DateTime.Now.Ticks));
}
//int t = rand.Next(35) ;
int t=rand.Next(10);
if (temp != -1 && temp == t)
{
return RndNum( n);
}
temp = t ;
VNum += VcArray[t];
}
return VNum ;//返回生成的随机数
}
