using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace XXX
{
    public partial class MD5Helper
    {
        public static string EncryptString(string str)
        {
            MD5 md5 = MD5.Create();
            // 將字符串轉換成字節(jié)數(shù)組
            byte[] byteOld = Encoding.UTF8.GetBytes(str);
            // 調用加密方法
            byte[] byteNew =  md5.ComputeHash(byteOld);
            // 將加密結果轉換為字符串
            StringBuilder sb = new StringBuilder();
            foreach (byte b in byteNew)
            {
                // 將字節(jié)轉換成16進制表示的字符串，
                sb.Append(b.ToString("x2"));
            }
            // 返回加密的字符串
            return sb.ToString();
        }
    }
}