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      天发国际娱乐官网:OnWednesday,theUnitedKingdomformallylaunchedtheprocessforittoleavetheEuropeanUnion,withPrimeMinisterTheresaMaytriggeringArticle50oftheLisbonTreaty,whichopensatwo-yearwindowfornegotiationsonitleavingthebloc.ThoughMayhaspromisedto"makeasuccess"ofthedivorce,therearemanyuncertaintiesandrestraintsthatarelikelytounderminehereffortstoachievethatgoal.Internally,sheisfacingahighlydisunitednation,especiallyasScotland,inabidtoholdontoEUmembership,isseekinganewreferendumonindependence.Externally,thereisthepossibilitythatnegotiationswillbreakdownandtheUKwillbeforcedoutoftheEUwithoutanydealinplace.Whatevertheoutcome,itwillneedtosecurenewtradeagreementswithEuropeanpartnersandseekalternativemarkets.Neitherofwhichislikelytobeeasy.ThelatterbecauseitpreviouslypositioneditselfasasteppingstonetotheEU,andwithoutthatitwillneedtofindnewsellingpoints.China,forinstance,regardedtheUKasabridgetotapthevastmarketoftheEU,itslargesttradingpartner.Sino-UKcooperationwillcontinue,however.TheUK,China'ssecond-largesttradingpartneramongEUmembers,hasalwayssoughtChineseinvestmentinsuchfieldsasnuclearpowerandhigh-speedrail;whileChinahaslookedtotheUKforhelpindevelopingitsfinancialmarketandfacilitatingtheprocessoftheyuan'sinternationalization.LondonhasalreadybecomeamainhubfortheoffshoretradingoftheChinesecurrency.And,asafoundingmemberoftheChina-ledAsianInfrastructureInvestmentBank,theUKcanrealizeopportunitiesfromthebank'sfinancingofmassiveinfrastructureprojectsacrossAsia,AfricaandEurope.Also,bothChinaandtheUKareadvocatesoffreetrade.WhiletalksonthesigningofafreetradeagreementbetweenChinaandtheEUhavebeenextremelyslow,becauseofpressurefromsomeEUcountries,BrexitmaypropelChinaandtheUKtoreachanFTAdealatanearlydate.ThefutureofSino-UKcollaborationinthepost-Brexitera,thus,restsonvisionandstatesmanshipoftheirleaders.AndwhileBrexitreflectsthetendencyofsomecountriestolookinwardandbackward,China'sleaderscontinuetolookoutwardandforward,championingtheviewthateconomicglobalization,notisolation,istherightwayforward,andcountriesshouldseekcommonbenefits.  

      3DES加密解密,


      C#3DES加密解密,JAVA、PHP可用

      using System;
      using System.Security.Cryptography;
      using System.Text;
      
      namespace TT.Utilities.Encrypt
      {
          public class DES3
          {
              /// <summary>
              /// utf-8编码
              /// 加密模式ECB,填充类型PKCS7
              /// </summary>
              /// <param name="str_content"></param>
              /// <param name="str_keys">24位key</param>
              /// <returns></returns>
              public static string DES3_Encrypt(string str_content, string str_keys)
              #region
              {
                  Encoding encoding = Encoding.UTF8;
      
                  byte[] content = encoding.GetBytes(str_content);
                  byte[] keys = encoding.GetBytes(str_keys);
      
                  TripleDESCryptoServiceProvider tdsc = new TripleDESCryptoServiceProvider();
      
                  //指定密匙长度,默认为192位
                  tdsc.KeySize = 128;
                  //使用指定的key和IV(加密向量)
                  tdsc.Key = keys;
                  //tdsc.IV = IV;
                  //加密模式,偏移
                  tdsc.Mode = CipherMode.ECB;
                  tdsc.Padding = PaddingMode.PKCS7;
                  //进行加密转换运算
                  ICryptoTransform ct = tdsc.CreateEncryptor();
                  //8很关键,加密结果是8字节数组
                  byte[] results = ct.TransformFinalBlock(content, 0, content.Length);
      
                  string base64String = Convert.ToBase64String(results);
                  return base64String;
              }
              #endregion
      
              /// <summary>
              /// utf-8编码
              /// 加密模式ECB,填充类型PKCS7
              /// </summary>
              /// <param name="base64_content"></param>
              /// <param name="str_keys">24位key</param>
              /// <returns></returns>
              public static string DES3_Decrypt(string base64_content, string str_keys)
              #region
              {
                  Encoding encoding = Encoding.UTF8;
      
                  byte[] content = Convert.FromBase64String(base64_content);
                  byte[] keys = encoding.GetBytes(str_keys);
      
                  TripleDESCryptoServiceProvider tdsc = new TripleDESCryptoServiceProvider();
      
                  //指定密匙长度,默认为192位
                  tdsc.KeySize = 128;
                  //使用指定的key和IV(加密向量)
                  tdsc.Key = keys;
                  //tdsc.IV = IV;
                  //加密模式,偏移
                  tdsc.Mode = CipherMode.ECB;
                  tdsc.Padding = PaddingMode.PKCS7;
                  //进行加密转换运算
                  ICryptoTransform ct = tdsc.CreateDecryptor();
                  //8很关键,加密结果是8字节数组
                  byte[] results = ct.TransformFinalBlock(content, 0, content.Length);
      
                  string oriString = encoding.GetString(results);
                  return oriString;
              }
              #endregion
          }
      }

       

      www.1click-soft.comtruehttp://www.1click-soft.com/Asp_Netjc/1315937.htmlTechArticle3DES加密解密, C#3DES加密解密,JAVA、PHP可用 using System; using System.Security.Cryptography; using System.Text; namespace TT.Utilities.Encrypt{ public class DES3 { /...

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