初始化CRICS

ConsoleApplication666/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.InteropServices;
+using System.Numerics;
+using System.Collections;
+
+namespace ConsoleApplication666
+{
+    class Program
+    {
+        [DllImport("kernel32.dll")]
+        private static extern void GetSystemTimePreciseAsFileTime(out long fileTime);
+
+        // 将 FILETIME (long) 转换为 DateTime
+        public static DateTime GetNowPrecise()
+        {
+            long fileTime;
+            GetSystemTimePreciseAsFileTime(out fileTime);
+            DateTime localTime = DateTime.FromFileTimeUtc(fileTime).ToLocalTime();
+            return localTime;
+
+        }
+        static void Main(string[] args)
+        {
+
+
+            BigInteger hugeNumber = BigInteger.Parse("1234567890123456789012345678901234567890");
+            var H= hugeNumber.ToByteArray();
+
+            BitArray bi = new BitArray(H);
+
+
+            // 从字节数组创建
+            byte[] bytes = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+            BigInteger fromBytes = new BigInteger(bytes);
+
+            // 基本运算
+            BigInteger sum = hugeNumber + 1;
+            BigInteger product = hugeNumber * 2;
+
+            Console.WriteLine("大数字: {0}", hugeNumber);
+            Console.WriteLine("加1: {0}", sum);
+            Console.WriteLine("乘2: {0}", product);
+
+            // 比较操作
+            if (hugeNumber > BigInteger.Parse("100000000000000000000"))
+            {
+                Console.WriteLine("这是一个非常大的数字");
+            }
+
+            DateTime ddd = GetNowPrecise();
+            string tii = ddd.ToString("yyyy-MM-dd HH:mm:ss.ffffff");
+            Console.WriteLine(tii);
+            Console.ReadLine();
+        }
+    }
+}