/// <summary>
/// 生成注册码
/// </summary>
/// <returns></returns>
public static string getRNumWithDate(DateTime date, string computerCode = null)
{
intCode = new int[127];
intNumber = new int[33];
Charcode = new char[33];
setIntCode(); //初始化127位数组
string MNum = getMNum(); //获取注册码
if (!string.IsNullOrEmpty(computerCode))
{
MNum = computerCode;
}
MNum += date.ToString("yyyyMMdd");
if (MNum.Length != Charcode.Length - 1)
{
return(null);
}
for (int i = 1; i < Charcode.Length; i++)//把机器码存入数组中
{
Charcode[i] = Convert.ToChar(MNum.Substring(i - 1, 1));
}
for (int j = 1; j < intNumber.Length; j++)//把字符的ASCII值存入一个整数组中。
{
intNumber[j] = intCode[Convert.ToInt32(Charcode[j])] + Convert.ToInt32(Charcode[j]);
}
string strAsciiName = "";//用于存储注册码
for (int j = 1; j < intNumber.Length; j++)
{
var code = intNumber[j] + (j % 3);
if (code >= 48 && code <= 57)//判断字符ASCII值是否0－9之间
{
strAsciiName += Convert.ToChar(code).ToString();
}
else if (code >= 65 && code <= 90)//判断字符ASCII值是否A－Z之间
{
strAsciiName += Convert.ToChar(code).ToString();
}
else if (code >= 97 && code <= 122)//判断字符ASCII值是否a－z之间
{
strAsciiName += Convert.ToChar(code).ToString();
}
else//判断字符ASCII值不在以上范围内
{
if (code > 122)//判断字符ASCII值是否大于z
{
strAsciiName += Convert.ToChar(code - 10).ToString();
}
else
{
strAsciiName += Convert.ToChar(code - 9).ToString();
}
}
}
return(strAsciiName);//返回注册码
}
List <MNum> Sums(Dictionary <int, MNum> dbrB, List <double> bi)
{
var ret = new List <MNum>();
for (int i = 0; i < eq[0].Count; i++)
{
MNum s = new MNum();
for (int j = 0; j < rows; j++)
{
s += eq[j][i] * dbrB.Values.ToArray()[j];
}
s += new MNum(-f.eq[i], 0);
ret.Add(s);
}
MNum bis = new MNum();
for (int j = 0; j < rows; j++)
{
bis += bi[j] * dbrB.Values.ToArray()[j];
}
ret.Add(bis);
ret.Add(new MNum());
return(ret);
}
