/// <summary>
/// 根据格式类型组合字符集
/// </summary>
/// <param name="f"></param>
/// <returns></returns>
private static string getSource(CharSchemeEnum scheme)
{
switch (scheme)
{
case CharSchemeEnum.Num:
return(_Nums);
case CharSchemeEnum.Char:
return(_CharsL + _CharsU);
case CharSchemeEnum.CharL:
return(_CharsL);
case CharSchemeEnum.CharU:
return(_CharsU);
case CharSchemeEnum.NumChar:
return(_Nums + _CharsL + _CharsU);
case CharSchemeEnum.NumCharL:
return(_Nums + _CharsL);
case CharSchemeEnum.NumCharU:
return(_Nums + _CharsU);
case CharSchemeEnum.Chinese:
return(_ChinesePopular);
case CharSchemeEnum.Symbol:
return(_Symbol);
default:
throw new ArgumentException("RandomHelper : Format is not defined.");
}
}
/// <summary>
/// 生成指定长度区间随机字符串列表
/// </summary>
/// <param name="scheme">生成格式</param>
/// <param name="minlen">字符串最小长度</param>
/// <param name="maxlen">字符串最大长度</param>
/// <param name="count">生成数量</param>
/// <returns></returns>
public static List <string> GenStringList(CharSchemeEnum scheme, int minlen, int maxlen, int count)
{
var result = new List <string>();
for (int i = 0; i < count; i++)
{
result.Add(GenString(scheme, minlen, maxlen));
}
return(result);
}
/// <summary>
/// 生成定长随机字符串
/// </summary>
/// <param name="scheme">格式</param>
/// <param name="len">结果长度</param>
/// <returns></returns>
public static string GenString(CharSchemeEnum scheme, int len)
{
var source = getSource(scheme);
var rand = new Random(Guid.NewGuid().GetHashCode());
var sb = new StringBuilder();
for (int i = 0; i < len; i++)
{
sb.Append(source[rand.Next(0, source.Length)]);
}
return(sb.ToString());
}
/// <summary>
/// 生成随机长度字符串
/// </summary>
/// <param name="minlen">最小长度</param>
/// <param name="maxlen">最大长度</param>
/// <returns></returns>
public static string GenString(CharSchemeEnum scheme, int minlen, int maxlen)
{
return(GenString(scheme, GenNumber(minlen, maxlen)));
}