using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Net.Mail; using System.Net; using System.Threading; using System.IO; using System.Security.Cryptography; namespace ConsoleApp348 { class Program { static List<String> MD5List = new List<string>(); static void Main(string[] args) { string dir = @"C:\Users\Fred\Downloads"; GetFiles(dir); if(MD5List.Any()) { Parallel.ForEach(MD5List, x => { Console.WriteLine(x); }); } Console.ReadLine(); } static void GetFiles(string dir) { string[] allFiles = Directory.GetFiles(dir, "*", SearchOption.TopDirectoryOnly); Console.WriteLine($"There are totally {allFiles.Length} files in {dir}"); if(allFiles!=null && allFiles.Any()) { for(int i=0;i<allFiles.Length;i++) { GenerateMD5ForLargeFiles(allFiles[i]); } } } static void GenerateMD5ForLargeFiles(string fileName) { StringBuilder stringBuilder = new StringBuilder(); using (Stream readStream = File.OpenRead(fileName)) { using (MD5 bigFileMD5 = MD5.Create()) { byte[] data = bigFileMD5.ComputeHash(readStream); for(int i=0;i<data.Length;i++) { stringBuilder.Append(data[i].ToString("x2")); } } } MD5List.Add(stringBuilder.ToString()); } }
static void GenerateMD5ForLargeFiles(string fileName)
{
StringBuilder stringBuilder = new StringBuilder();
using (Stream readStream = File.OpenRead(fileName))
{
using (MD5 bigFileMD5 = MD5.Create())
{
byte[] data = bigFileMD5.ComputeHash(readStream);
for(int i=0;i<data.Length;i++)
{
stringBuilder.Append(data[i].ToString("x2"));
}
}
}
MD5List.Add(stringBuilder.ToString());
}