生成随机字符串

///

1<summary>   
2/// 获取随机字符串   
3/// </summary>

///

1<param name="strLength"/>

字符串长度
///

1<param name="Seed"/>

随机函数种子值
///

1<returns>指定长度的随机字符串</returns>

public static string RndString( int strLength, params int[] Seed )
{
string strSep = ",";
char[] chrSep = strSep.ToCharArray();

//因1与l不容易分清楚，所以去除
string strChar = "2,3,4,5,6,7,8,9,a,b,c,d,e,f,g,h,j,k,m,n,p,q,r,s,t,u,v,w,x,y,z"
+ ",A,B,C,D,E,F,G,H,J,K,L,M,N,P,Q,R,S,T,U,W,X,Y,Z";

string[] aryChar= strChar.Split( chrSep, strChar.Length );

string strRandom = string.Empty;
Random Rnd;
if( Seed != null && Seed.Length > 0 )
{
Rnd = new Random( Seed[0] );
}
else
{
Rnd = new Random();
}

//生成随机字符串
for( int i=0; i < strLength; i++ )
{
strRandom += aryChar[Rnd.Next( aryChar.Length )];
}

return strRandom;
}