C# MD5

using System;using System.Collections.Generic;using System.Linq;using System.Security.Cryptography;using System.Text;namespace _15MD5加密{    class Program    {        static void Main(string[] args)        {            //张三abc  abc123  明文保存            string str = "123";            //202cb962ac59075b964b07152d234b70            //202cb962ac59075b964b07152d234b70  十六进制，二位            //202cb962ac5975b964b7152d234b70  十六进制，一位            //3244185981728979115075721453575112  十进制            string md5Str = GetMd5(str);            Console.WriteLine(md5Str);            Console.ReadKey();        }        static string GetMd5(string str)        {            MD5 md5 = MD5.Create();            byte[] buffer = Encoding.Default.GetBytes(str);            //开始加密 返回加密好的字节数组            byte[] bufferMd5 = md5.ComputeHash(buffer);            //转成字符串            //string result = Encoding.Default.GetString(bufferMd5);            //return result;            StringBuilder sb = new StringBuilder();            for (int i = 0; i < bufferMd5.Length; i++)            {                sb.Append(bufferMd5[i].ToString("x2"));//x:表示将十进制转换为16进制,2表示转成两位            }            return sb.ToString();        }    }}