十六进制到int C#,非常大的数字

Question

我有一个256字符长的字符串,其中包含一个十六进制值:

EC851A69B8ACD843164E10CFF70CF9E86DC2FEE3CF6F374B43C854E3342A2F1AC3E30C741CC41E679DF6D07CE6FA3A66083EC9B8C8BF3AF05D8BDBB0AA6CB3EF8C5BAA2A5E531BA9E28592F99E0FE4F95169A6C63F635D0197E325C5EC76219B907E4EBDCD401FB1986E4E3CA661FF73E7E2B8FD9988E753B7042B2BBCA76679

我想将它转换为带有这样的数字的字符串:

102721434037452409244947064576168505707480035762262934026941212181473785225928879178124028140134582697986427982801088884553965371786856967476796072433168989860379885762727214550528198941038582937788145880903882293999022181847665735412629158069472562567144696160522107094738216218810820997773451212693036210879

怎么能用如此大的数字来完成？

提前致谢.

Answer 1

使用BigInteger.具体来说,您可以使用BigInteger.Parse将十六进制表示解析为BigInteger(use NumberStyles.HexNumber)的实例,然后BigInteger.ToString获取十进制表示.

var number = BigInteger.Parse(
    "EC851A69B8ACD843164E10CFF70CF9E86DC2FEE3CF6F374B43C854E3342A2F1AC3E30C741CC41E679DF6D07CE6FA3A66083EC9B8C8BF3AF05D8BDBB0AA6CB3EF8C5BAA2A5E531BA9E28592F99E0FE4F95169A6C63F635D0197E325C5EC76219B907E4EBDCD401FB1986E4E3CA661FF73E7E2B8FD9988E753B7042B2BBCA76679",
    NumberStyles.HexNumber
);
var s = number.ToString();