生成指定长度的随机数
#region 生成指定长度的随机数
/// <summary>
/// 生成指定长度的随机数
/// </summary>
/// <param name="_Str">字符的范围,可为空</param>
/// <param name="_Len">随即字符的长度</param>
/// <returns></returns>
public static string MakeRandom(string _Str, int _Len)
{
if (_Str == "") { _Str = "abcdefghijklmnopqrstuvwxyz0123456789"; }
string Re = "";
int i;
Random Ran = new Random();
for (int j = 0; j < _Len; j++)
{
i = Ran.Next(_Str.Length);
Re += _Str[i];
}
return Re;
}
#endregion
/// <summary>
/// 生成指定长度的随机数
/// </summary>
/// <param name="_Str">字符的范围,可为空</param>
/// <param name="_Len">随即字符的长度</param>
/// <returns></returns>
public static string MakeRandom(string _Str, int _Len)
{
if (_Str == "") { _Str = "abcdefghijklmnopqrstuvwxyz0123456789"; }
string Re = "";
int i;
Random Ran = new Random();
for (int j = 0; j < _Len; j++)
{
i = Ran.Next(_Str.Length);
Re += _Str[i];
}
return Re;
}
#endregion