Csharp/C#教程：C# 常用公共方法分享

C#常用公共方法，具体内容如下

1.后台调用weburl

stringhostUrl="https://www.a.com?id=123"; HttpWebRequestmyReq=(HttpWebRequest)WebRequest.Create(hostUrl); myReq.Method="GET"; HttpWebResponseHttpWResp=(HttpWebResponse)myReq.GetResponse(); StreammyStream=HttpWResp.GetResponseStream(); StreamReadersr=newStreamReader(myStream,Encoding.UTF8); StringBuilderstrBuilder=newStringBuilder(); while(-1!=sr.Peek()) { strBuilder.Append(sr.ReadLine()); } sr.Close(); myStream.Close(); HttpWResp.Close(); Newtonsoft.Json.Linq.JObjectjo=(Newtonsoft.Json.Linq.JObject)Newtonsoft.Json.JsonConvert.DeserializeObject(strBuilder.ToString()); stringresCode=jo["ReturnCode"].ToString();

2.检测输入URL是否合法 

///<summary> ///判断网址是否可以访问 ///</summary> ///<paramname="Url"></param> ///<returns></returns> protectedboolChkPageUrl(stringurl) { boolresult=false; try { HttpWebRequestmyHttpWebRequest=(HttpWebRequest)WebRequest.Create(url); myHttpWebRequest.UserAgent="Mozilla/5.0(WindowsNT6.1;WOW64;Trident/7.0;rv:11.0)likeGecko"; myHttpWebRequest.Method="GET"; HttpWebResponsemyHttpWebResponse=(HttpWebResponse)myHttpWebRequest.GetResponse(); if(myHttpWebResponse.StatusCode==HttpStatusCode.OK) { result=true; } myHttpWebResponse.Close(); } catch { result=false; } returnresult; }

3.批量导出

///<summary> ///批量导出 ///</summary> ///<returns></returns> publicFileResultExportStu() { //创建Excel文件的对象 NPOI.HSSF.UserModel.HSSFWorkbookbook=newNPOI.HSSF.UserModel.HSSFWorkbook(); //添加一个sheet NPOI.SS.UserModel.ISheetsheet1=book.CreateSheet("Sheet1"); intpager_totalcount=(int)Session["pager_totalcount"]; inttotalCount=0; //获取list数据 List<ArticleEntity>infoList=newAchieveDAL.MyTestDAL().GetArticleList("",pager_totalcount,1,outtotalCount); //给sheet1添加第一行的头部标题 NPOI.SS.UserModel.IRowrow1=sheet1.CreateRow(0); //创建时间名称商户订单号|交易号对方金额(元)状态 row1.CreateCell(0).SetCellValue("编号"); row1.CreateCell(1).SetCellValue("标题"); row1.CreateCell(2).SetCellValue("内容"); intWidth=256; sheet1.SetColumnWidth(0,10*Width); sheet1.SetColumnWidth(1,25*Width); sheet1.SetColumnWidth(2,60*Width); if(infoList!=null) { varlist=infoList.OrderByDescending(p=>p.ID); if(list!=null) { inti=0; //将数据逐步写入sheet1各个行 foreach(variteminlist) { i=i+1; NPOI.SS.UserModel.IRowrowtemp=sheet1.CreateRow(i); rowtemp.CreateCell(0).SetCellValue(item.ID.ToString()); rowtemp.CreateCell(1).SetCellValue(item.Title==null?"":item.Title.ToString()); rowtemp.CreateCell(2).SetCellValue(item.Content==null?"":item.Content.ToString()); } } } //写入到客户端 System.IO.MemoryStreamms=newSystem.IO.MemoryStream(); book.Write(ms); ms.Seek(0,System.IO.SeekOrigin.Begin); returnFile(ms,"application/vnd.ms-excel",HttpUtility.UrlEncode("导出",Encoding.UTF8).ToString()+DateTime.Now.ToString("yyyyMMddHHmmss")+".xls"); }

4.批量导入 

 <inputname=”file”type=”file”id=”file”/>
<inputtype=”submit”name=”Upload”value=”上传”/>

///<summary> ///批量导入 ///</summary> ///<returns></returns> [HttpPost] publicActionResultImportStu() { HttpPostedFileBasefile=Request.Files["file"]; stringFileName; stringsavePath; if(file==null||file.ContentLength<=0) { returnContent("<script>alert('上传失败,请选择上传文件!');location.href='/MyTest/MVCPager';</script>"); } else { stringfilename=Path.GetFileName(file.FileName); intfilesize=file.ContentLength;//获取上传文件的大小单位为字节byte stringfileEx=System.IO.Path.GetExtension(filename);//获取上传文件的扩展名 stringNoFileName=System.IO.Path.GetFileNameWithoutExtension(filename);//获取无扩展名的文件名 stringFileType=".xls,.xlsx";//定义上传文件的类型字符串 if(FileType.Contains(".exe"))//EXCEL { returnContent("<script>alert('上传文件类型格式错误,不允许导入exe格式的文件!');location.href='/MyTest/MVCPager';</script>"); } FileName=NoFileName+DateTime.Now.ToString("yyyyMMddhhmmss")+fileEx; stringpath=AppDomain.CurrentDomain.BaseDirectory+"uploads/"; savePath=Path.Combine(path,FileName); file.SaveAs(savePath); if(FileType.Contains(fileEx))//EXCEL { stringstrConn="Provider=Microsoft.Jet.OLEDB.4.0;DataSource="+savePath+";"+"ExtendedProperties=Excel8.0"; OleDbConnectionconn=newOleDbConnection(strConn); conn.Open(); OleDbDataAdaptermyCommand=newOleDbDataAdapter("select*from[Sheet1$]",strConn); DataSetmyDataSet=newDataSet(); try { myCommand.Fill(myDataSet,"ExcelInfo"); } catch(Exceptionex) { returnContent("<script>alert('上传失败,"+ex.Message+"!');location.href='/MyTest/MVCPager';</script>"); } //列顺序标题内容 DataTabletable=myDataSet.Tables["ExcelInfo"].DefaultView.ToTable(); //事物异常回滚 using(TransactionScopetransaction=newTransactionScope()) { for(inti=0;i<table.Rows.Count;i++) { ArticleEntitymodel=newArticleEntity(); model.Title=table.Rows[i][0].ToString(); model.Content=table.Rows[i][1].ToString(); newAchieveDAL.MyTestDAL().AddArticle(model); } transaction.Complete(); } } returnRedirectToAction("MVCPager","MyTest"); } }

5.获取客户端的IP地址 

///<summary> ///获取客户端的IP地址 ///</summary> ///<returns>客户端IP地址</returns> publicstaticstringGet_ClientIP() { stringresult=string.Empty; result=HttpContext.Current.Request.Headers["X-Real-IP"];//Nginx为前端时获取IP地址的方法 if(result!=null) returnresult; if(HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]!=null)//发出请求的远程主机的IP地址 { result=HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString(); } elseif(HttpContext.Current.Request.ServerVariables["HTTP_VIA"]!=null)//判断是否设置代理，若使用了代理 { if(HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]!=null)//获取代理服务器的IP { result=HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); } else { result=HttpContext.Current.Request.UserHostAddress; } } else { result=HttpContext.Current.Request.UserHostAddress; } if(result=="::1") result=string.Empty; returnresult; }

6.AES对称加密 

///<summary> ///对称加密类 ///</summary> publicclassAES { ///<summary> ///解密 ///</summary> ///<paramname="strDecrypt"></param> ///<paramname="strKey"></param> ///<returns></returns> publicstaticstringDecrypt(stringstrDecrypt,stringstrKey) { try { byte[]bytes=Encoding.UTF8.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(strKey,"md5")); byte[]inputBuffer=Convert.FromBase64String(strDecrypt); byte[]buffer3=null; using(RijndaelManagedmanaged=newRijndaelManaged()) { managed.Key=bytes; managed.Mode=CipherMode.ECB; managed.Padding=PaddingMode.PKCS7; buffer3=managed.CreateDecryptor().TransformFinalBlock(inputBuffer,0,inputBuffer.Length); } returnEncoding.UTF8.GetString(buffer3); } catch { returnnull; } } ///<summary> ///解密 ///</summary> ///<paramname="strDecrypt"></param> ///<paramname="strKey"></param> ///<returns></returns> publicstaticstringDecrypt(stringtoDecrypt,stringkey,stringiv) { byte[]bytes=Encoding.UTF8.GetBytes(key); byte[]buffer2=Encoding.UTF8.GetBytes(iv); byte[]inputBuffer=Convert.FromBase64String(toDecrypt); RijndaelManagedmanaged=newRijndaelManaged { Key=bytes, IV=buffer2, Mode=CipherMode.CBC, Padding=PaddingMode.Zeros }; byte[]buffer4=managed.CreateDecryptor().TransformFinalBlock(inputBuffer,0,inputBuffer.Length); returnEncoding.UTF8.GetString(buffer4); } publicstaticstringDecryptStr(stringEncryptString) { stringstr=""; if(!string.IsNullOrEmpty(EncryptString)) { stringsSource=Decrypt(EncryptString,"cn.solefu"); if(Utility.Left(sSource,3)=="gk_") { str=sSource.Substring(3); } } returnstr; } publicstaticstringDecryptStrByCBC(stringEncryptString) { stringstr=""; if(!string.IsNullOrEmpty(EncryptString)) { stringsSource=Decrypt(EncryptString,"cn.solefu","cn.solefu"); if(Utility.Left(sSource,3)=="gk_") { str=sSource.Substring(3); } } returnstr; } ///<summary> ///加密 ///</summary> ///<paramname="strEncrypt"></param> ///<paramname="strKey"></param> ///<returns></returns> publicstaticstringEncrypt(stringstrEncrypt,stringstrKey) { try { byte[]bytes=Encoding.UTF8.GetBytes(FormsAuthentication.HashPasswordForStoringInConfigFile(strKey,"md5")); byte[]inputBuffer=Encoding.UTF8.GetBytes(strEncrypt); byte[]inArray=null; using(RijndaelManagedmanaged=newRijndaelManaged()) { managed.Key=bytes; managed.Mode=CipherMode.ECB; managed.Padding=PaddingMode.PKCS7; inArray=managed.CreateEncryptor().TransformFinalBlock(inputBuffer,0,inputBuffer.Length); } returnConvert.ToBase64String(inArray,0,inArray.Length); } catch { returnnull; } } ///<summary> ///加密 ///</summary> ///<paramname="strEncrypt"></param> ///<paramname="strKey"></param> ///<returns></returns> publicstaticstringEncrypt(stringtoEncrypt,stringkey,stringiv) { byte[]bytes=Encoding.UTF8.GetBytes(key); byte[]buffer2=Encoding.UTF8.GetBytes(iv); byte[]inputBuffer=Encoding.UTF8.GetBytes(toEncrypt); RijndaelManagedmanaged=newRijndaelManaged { Key=bytes, IV=buffer2, Mode=CipherMode.CBC, Padding=PaddingMode.Zeros }; byte[]inArray=managed.CreateEncryptor().TransformFinalBlock(inputBuffer,0,inputBuffer.Length); returnConvert.ToBase64String(inArray,0,inArray.Length); } publicstaticstringEncryptStr(stringSourceString) { returnEncrypt("gk_"+SourceString,"cn.solefu"); } publicstaticstringEncryptStr(stringSourceString,boolUseInUrl) { returnHttpUtility.UrlEncode(EncryptStr(SourceString)); } publicstaticstringEncryptStrByCBC(stringSourceString) { returnEncrypt("gk_"+SourceString,"cn.solefu","cn.solefu"); } publicstaticstringEncryptStrByCBC(stringSourceString,boolUseInUrl) { returnHttpUtility.UrlEncode(EncryptStrByCBC(SourceString)); } }

7.Cookies帮助类 

publicclassCookiesHelper { publicstaticvoidAddCookie(stringcookieName,DateTimeexpires) { HttpCookiecookie=newHttpCookie(cookieName) { Expires=expires }; AddCookie(cookie,null); } publicstaticvoidAddCookie(stringkey,stringvalue) { AddCookie(newHttpCookie(key,value),null); } publicstaticvoidAddCookie(HttpCookiecookie,stringDomain) { HttpResponseresponse=HttpContext.Current.Response; if(response!=null) { cookie.HttpOnly=true; cookie.Path="/"; if(!string.IsNullOrEmpty(Domain)) { cookie.Domain=Domain; } response.AppendCookie(cookie); } } publicstaticvoidAddCookie(stringcookieName,DateTimeexpires,stringDomain) { HttpCookiecookie=newHttpCookie(cookieName) { Expires=expires }; AddCookie(cookie,Domain); } publicstaticvoidAddCookie(stringkey,stringvalue,DateTimeexpires) { HttpCookiecookie=newHttpCookie(key,value) { Expires=expires }; AddCookie(cookie,null); } publicstaticvoidAddCookie(stringcookieName,stringkey,stringvalue) { HttpCookiecookie=newHttpCookie(cookieName); cookie.Values.Add(key,value); AddCookie(cookie,null); } publicstaticvoidAddCookie(stringkey,stringvalue,boolwithDomain,stringDomain) { if(withDomain) { AddCookie(newHttpCookie(key,value),Domain); } else { AddCookie(newHttpCookie(key,value),null); } } publicstaticvoidAddCookie(stringkey,stringvalue,DateTimeexpires,stringDomain) { HttpCookiecookie=newHttpCookie(key,value) { Expires=expires }; AddCookie(cookie,Domain); } publicstaticvoidAddCookie(stringcookieName,stringkey,stringvalue,DateTimeexpires) { HttpCookiecookie=newHttpCookie(cookieName) { Expires=expires }; cookie.Values.Add(key,value); AddCookie(cookie,null); } publicstaticvoidAddCookie(stringcookieName,stringkey,stringvalue,stringDomain) { HttpCookiecookie=newHttpCookie(cookieName); cookie.Values.Add(key,value); AddCookie(cookie,Domain); } publicstaticvoidAddCookie(stringcookieName,stringkey,stringvalue,DateTimeexpires,stringDomain) { HttpCookiecookie=newHttpCookie(cookieName) { Expires=expires }; cookie.Values.Add(key,value); AddCookie(cookie,Domain); } publicstaticvoidAddDomainCookie(stringkey,stringvalue,stringDomain) { AddCookie(newHttpCookie(key,value),Domain); } publicstaticHttpCookieGetCookie(stringcookieName) { HttpRequestrequest=HttpContext.Current.Request; if(request!=null) { if(request.Cookies[cookieName]!=null) { returnrequest.Cookies[cookieName]; } if(request.Cookies[","+cookieName]!=null) { returnrequest.Cookies[","+cookieName]; } } returnnull; } publicstaticstringGetCookieValue(stringcookieName) { returnGetCookieValue(cookieName,null); } publicstaticstringGetCookieValue(stringcookieName,stringkey) { HttpRequestrequest=HttpContext.Current.Request; if(request==null) { return""; } if(request.Cookies[cookieName]!=null) { if(!string.IsNullOrEmpty(key)&&request.Cookies[cookieName].HasKeys) { returnrequest.Cookies[cookieName].Values[key]; } returnrequest.Cookies[cookieName].Value; } stringstr=","+cookieName; if(request.Cookies[str]==null) { return""; } if(!string.IsNullOrEmpty(key)&&request.Cookies[str].HasKeys) { returnrequest.Cookies[str].Values[key]; } returnrequest.Cookies[str].Value; } publicstaticstringGetCookieValue(HttpCookiecookie,stringkey) { if(cookie==null) { return""; } if(!string.IsNullOrEmpty(key)&&cookie.HasKeys) { returncookie.Values[key]; } returncookie.Value; } publicstaticvoidRemoveCookie(stringcookieName) { RemoveCookie(cookieName,null); } publicstaticvoidRemoveCookie(stringcookieName,stringkey) { HttpResponseresponse=HttpContext.Current.Response; if(response!=null) { HttpCookiecookie=response.Cookies[cookieName]; if(cookie!=null) { if(!string.IsNullOrEmpty(key)&&cookie.HasKeys) { cookie.Values.Remove(key); } else { response.Cookies.Remove(cookieName); } } } } publicstaticvoidSetCookie(stringcookieName,DateTimeexpires) { SetCookie(cookieName,null,null,newDateTime?(expires),null); } publicstaticvoidSetCookie(stringkey,stringvalue) { SetCookie(key,null,value,null,null); } publicstaticvoidSetCookie(stringcookieName,DateTimeexpires,stringDomain) { SetCookie(cookieName,null,null,newDateTime?(expires),Domain); } publicstaticvoidSetCookie(stringkey,stringvalue,DateTimeexpires) { SetCookie(key,null,value,newDateTime?(expires),null); } publicstaticvoidSetCookie(stringcookieName,stringkey,stringvalue) { SetCookie(cookieName,key,value,null,null); } publicstaticvoidSetCookie(stringkey,stringvalue,boolwithDomain,stringDomain) { if(withDomain) { SetCookie(key,null,value,null,Domain); } else { SetCookie(key,null,value,null,null); } } publicstaticvoidSetCookie(stringkey,stringvalue,DateTimeexpires,stringDomain) { SetCookie(key,null,value,newDateTime?(expires),Domain); } publicstaticvoidSetCookie(stringcookieName,stringkey,stringvalue,stringDomain) { SetCookie(cookieName,key,value,null,Domain); } publicstaticvoidSetCookie(stringcookieName,stringkey,stringvalue,DateTime?expires,stringDomain) { HttpResponseresponse=HttpContext.Current.Response; if(response!=null) { HttpCookiecookie=response.Cookies[cookieName]; if(cookie!=null) { cookie.Path="/"; if(!string.IsNullOrEmpty(Domain)) { cookie.Domain=Domain; } if(!string.IsNullOrEmpty(key)&&cookie.HasKeys) { cookie.Values.Set(key,value); } elseif(!string.IsNullOrEmpty(value)) { cookie.Value=value; } if(expires.HasValue) { cookie.Expires=expires.Value; } response.SetCookie(cookie); } } } ///<summary> ///设置域的cookie ///</summary> ///<paramname="key"></param> ///<paramname="value"></param> ///<paramname="Domain"></param> publicstaticvoidSetDomainCookie(stringkey,stringvalue,stringDomain) { SetCookie(key,null,value,null,Domain); } }

8.DataTable转换成实体类

///<summary> ///#regionDataTable转换成实体类 ///</summary> ///<typeparamname="T"></typeparam> publicclassModelUtil<T>whereT:new() { ///<summary> ///填充对象列表：用DataSet的第一个表填充实体类 ///</summary> ///<paramname="ds">DataSet</param> ///<returns></returns> publicstaticList<T>FillModel(DataSetds) { if(ds==null||ds.Tables[0]==null||ds.Tables[0].Rows.Count==0) { returnnull; } else { returnFillModel(ds.Tables[0]); } } ///<summary> ///填充对象列表：用DataSet的第index个表填充实体类 ///</summary> publicstaticList<T>FillModel(DataSetds,intindex) { if(ds==null||ds.Tables.Count<=index||ds.Tables[index].Rows.Count==0) { returnnull; } else { returnFillModel(ds.Tables[index]); } } ///<summary> ///填充对象列表：用DataTable填充实体类 ///</summary> publicstaticList<T>FillModel(DataTabledt) { if(dt==null||dt.Rows.Count==0) { returnnull; } List<T>modelList=newList<T>(); foreach(DataRowdrindt.Rows) { //Tmodel=(T)Activator.CreateInstance(typeof(T)); Tmodel=newT(); for(inti=0;i<dr.Table.Columns.Count;i++) { List<PropertyInfo>propertyInfos=model.GetType().GetProperties().ToList(); PropertyInfoitem=propertyInfos.FirstOrDefault(p=>string.Compare(p.Name,dr.Table.Columns[i].ColumnName,true)==0); if(item!=null&&dr[i]!=DBNull.Value) try { item.SetValue(model,dr[i],null); } catch { } } modelList.Add(model); } returnmodelList; } ///<summary> ///填充对象：用DataRow填充实体类 ///</summary> publicstaticTFillModel(DataRowdr) { if(dr==null) { returndefault(T); } //Tmodel=(T)Activator.CreateInstance(typeof(T)); Tmodel=newT(); for(inti=0;i<dr.Table.Columns.Count;i++) { List<PropertyInfo>propertyInfos=model.GetType().GetProperties().ToList(); PropertyInfoitem=propertyInfos.FirstOrDefault(p=>string.Compare(p.Name,dr.Table.Columns[i].ColumnName,true)==0); if(item!=null&&dr[i]!=DBNull.Value) try { item.SetValue(model,dr[i],null); } catch { } } returnmodel; } ///<summary> ///实体类转换成DataSet ///</summary> ///<paramname="modelList">实体类列表</param> ///<returns></returns> publicstaticDataSetFillDataSet(List<T>modelList) { if(modelList==null||modelList.Count==0) { returnnull; } else { DataSetds=newDataSet(); ds.Tables.Add(FillDataTable(modelList)); returnds; } } ///<summary> ///实体类转换成DataTable ///</summary> ///<paramname="modelList">实体类列表</param> ///<returns></returns> publicstaticDataTableFillDataTable(List<T>modelList) { if(modelList==null||modelList.Count==0) { returnnull; } DataTabledt=CreateData(modelList[0]); foreach(TmodelinmodelList) { DataRowdataRow=dt.NewRow(); foreach(PropertyInfopropertyInfointypeof(T).GetProperties()) { dataRow[propertyInfo.Name]=propertyInfo.GetValue(model,null); } dt.Rows.Add(dataRow); } returndt; } ///<summary> ///根据实体类得到表结构 ///</summary> ///<paramname="model">实体类</param> ///<returns></returns> privatestaticDataTableCreateData(Tmodel) { DataTabledataTable=newDataTable(typeof(T).Name); foreach(PropertyInfopropertyInfointypeof(T).GetProperties()) { dataTable.Columns.Add(newDataColumn(propertyInfo.Name,propertyInfo.PropertyType)); } returndataTable; } ///<summary> ///将DataTable以转为List与Dictionary嵌套集合保存 ///</summary> ///<paramname="dt"></param> ///<returns></returns> publicstaticList<Dictionary<string,string>>ToListDictionary(DataTabledt) { List<Dictionary<string,string>>list=null; if(dt!=null&&dt.Rows.Count>0) { list=newList<Dictionary<string,string>>(); Dictionary<string,string>dic=null; foreach(DataRowdrindt.Rows) { dic=newDictionary<string,string>(); foreach(DataColumndcindt.Columns) { dic.Add(dc.ColumnName,dr[dc.ColumnName].ToString()); } list.Add(dic); } } returnlist; } ///<summary> ///请求的request的内容转换为model ///cza ///2016-5-3019:06:21 ///</summary> ///<paramname="context"></param> ///<returns></returns> publicstaticTConvertToModel(HttpContextcontext) { Tt=newT(); PropertyInfo[]propertys=t.GetType().GetProperties(); foreach(PropertyInfopiinpropertys) { if(!pi.CanWrite) continue; objectvalue=context.Request[pi.Name]; if(value!=null&&value!=DBNull.Value) { try { if(value.ToString()!="") pi.SetValue(t,Convert.ChangeType(value,pi.PropertyType),null);//这一步很重要，用于类型转换 else pi.SetValue(t,value,null); } catch {} } } returnt; } }

9.SQLServer数据库访问类 

///<summary> ///SQLServer数据库访问类 ///</summary> publicabstractclassSqlHelper { //读取配置文件里的数据库连接字符串 publicstaticreadonlystringconnStr=ConfigurationManager.ConnectionStrings["Conn"].ConnectionString; //空构造 publicSqlHelper(){} //Hashtabletostorecachedparameters privatestaticHashtableparmCache=Hashtable.Synchronized(newHashtable()); ///<summary> ///执行增删改【常用】 ///</summary> publicstaticintExecuteNonQuery(stringconnectionString,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); using(SqlConnectionconn=newSqlConnection(connectionString)) { PrepareCommand(cmd,conn,null,commandType,commandText,paras); intval=cmd.ExecuteNonQuery(); cmd.Parameters.Clear();//清空参数 returnval; } } ///<summary> ///执行增删改（对现有的数据库连接）【不常用】 ///</summary> publicstaticintExecuteNonQuery(SqlConnectionconnection,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); PrepareCommand(cmd,connection,null,commandType,commandText,paras); intval=cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); returnval; } ///<summary> ///执行多条sql语句（List泛型集合）【事务】（无参数） ///</summary> ///<paramname="connectionString">数据库连接字符串</param> ///<paramname="listSql">包含多条sql语句的泛型集合</param> ///<returns>受影响行数</returns> publicstaticintExecuteNonQuery(stringconnectionString,List<string>listSql) { SqlCommandcmd=newSqlCommand(); SqlConnectionconn=newSqlConnection(connectionString); conn.Open(); SqlTransactiontrans=conn.BeginTransaction(); PrepareCommand(cmd,conn,trans,CommandType.Text,null,null); try { intcount=0; for(intn=0;n<listSql.Count;n++) { stringstrSql=listSql[n]; if(strSql.Trim().Length>1) { cmd.CommandText=strSql; count+=cmd.ExecuteNonQuery(); } } trans.Commit(); cmd.Parameters.Clear(); returncount; } catch { trans.Rollback(); cmd.Parameters.Clear(); return0; } finally { conn.Close(); } } ///<summary> ///执行多条sql语句（Hashtable）【事务】（带一组参数，一个参数也得封装成组) ///</summary> ///<paramname="connectionString">数据库连接字符串</param> ///<paramname="sqlStringList">Hashtable表，键值对形式</param> publicstaticvoidExecuteNonQuery(stringconnectionString,HashtablesqlStringList) { using(SqlConnectionconn=newSqlConnection(connectionString)) { conn.Open(); using(SqlTransactiontrans=conn.BeginTransaction()) { SqlCommandcmd=newSqlCommand(); try { foreach(DictionaryEntryiteminsqlStringList) { stringcmdText=item.Key.ToString();//要执行的sql语句 SqlParameter[]cmdParas=(SqlParameter[])item.Value;//sql语句对应的参数 PrepareCommand(cmd,conn,trans,CommandType.Text,cmdText,cmdParas); intval=cmd.ExecuteNonQuery(); cmd.Parameters.Clear(); } if(sqlStringList.Count>0) trans.Commit(); } catch { trans.Rollback(); throw; } } } } ///<summary> ///返回DataReader对象 ///</summary> publicstaticSqlDataReaderExecuteReader(stringconnectionString,CommandTypecommandType,stringcmdText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); SqlConnectionconn=newSqlConnection(connectionString); try { PrepareCommand(cmd,conn,null,commandType,cmdText,paras); SqlDataReaderreader=cmd.ExecuteReader(CommandBehavior.CloseConnection); cmd.Parameters.Clear(); returnreader; } catch { conn.Close(); throw; } } ///<summary> ///返回第一行第一列信息（可能是字符串所以返回类型是object）【常用】 ///</summary> publicstaticobjectExecuteScalar(stringconnectionString,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); using(SqlConnectionconnection=newSqlConnection(connectionString)) { PrepareCommand(cmd,connection,null,commandType,commandText,paras); objectval=cmd.ExecuteScalar(); cmd.Parameters.Clear(); returnval; } } ///<summary> ///返回第一行第一列信息（针对现有的数据库连接）【不常用】 ///</summary> publicstaticobjectExecuteScalar(SqlConnectionconnection,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); PrepareCommand(cmd,connection,null,commandType,commandText,paras); objectval=cmd.ExecuteScalar(); cmd.Parameters.Clear(); returnval; } ///<summary> ///返回DataTable ///</summary> publicstaticDataTableGetDataTable(stringconnectionString,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); using(SqlConnectionconn=newSqlConnection(connectionString)) { PrepareCommand(cmd,conn,null,commandType,commandText,paras); using(SqlDataAdapterda=newSqlDataAdapter(cmd)) { DataTabledt=newDataTable(); da.Fill(dt); returndt; } } } ///<summary> ///返回DataSet ///</summary> publicstaticDataSetGetDataset(stringconnectionString,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { SqlCommandcmd=newSqlCommand(); using(SqlConnectionconn=newSqlConnection(connectionString)) { PrepareCommand(cmd,conn,null,commandType,commandText,paras); using(SqlDataAdapterda=newSqlDataAdapter(cmd)) { DataSetds=newDataSet(); da.Fill(ds); returnds; } } } ///<summary> ///addparameterarraytothecache ///</summary> ///<paramname="cacheKey">Keytotheparametercache</param> ///<paramname="cmdParms">anarrayofSqlParamterstobecached</param> publicstaticvoidCacheParameters(stringcacheKey,paramsSqlParameter[]commandParameters) { parmCache[cacheKey]=commandParameters; } ///<summary> ///Retrievecachedparameters ///</summary> ///<paramname="cacheKey">keyusedtolookupparameters</param> ///<returns>CachedSqlParamtersarray</returns> publicstaticSqlParameter[]GetCachedParameters(stringcacheKey) { SqlParameter[]cachedParms=(SqlParameter[])parmCache[cacheKey]; if(cachedParms==null) returnnull; SqlParameter[]clonedParms=newSqlParameter[cachedParms.Length]; for(inti=0,j=cachedParms.Length;i<j;i++) clonedParms[i]=(SqlParameter)((ICloneable)cachedParms[i]).Clone(); returnclonedParms; } ///<summary> ///准备一个待执行的SqlCommand ///</summary> privatestaticvoidPrepareCommand(SqlCommandcmd,SqlConnectionconn,SqlTransactiontrans,CommandTypecommandType,stringcommandText,paramsSqlParameter[]paras) { try { if(conn.State!=ConnectionState.Open) { conn.Close(); conn.Open(); } cmd.Connection=conn; if(commandText!=null) cmd.CommandText=commandText; cmd.CommandType=commandType;//这里设置执行的是T-Sql语句还是存储过程 if(trans!=null) cmd.Transaction=trans; if(paras!=null&&paras.Length>0) { //cmd.Parameters.AddRange(paras); for(inti=0;i<paras.Length;i++) { if(paras[i].Value==null||paras[i].Value.ToString()=="") paras[i].Value=DBNull.Value;//插入或修改时，如果有参数是空字符串，那么以NULL的形式插入数据库 cmd.Parameters.Add(paras[i]); } } } catch(Exceptionex) { thrownewException(ex.Message); } } ///<summary> ///通用分页存储过程，有条件查询，有排序字段，按照排序字段的降序排列 ///</summary> ///<paramname="PageSize">每页记录数</param> ///<paramname="CurrentCount">当前记录数量（页码*每页记录数）</param> ///<paramname="TableName">表名称</param> ///<paramname="Where">查询条件，例："ID>1000ANDNamelike'%LiLinFeng%'"排序条件，直接在后面加，例："ORDERBYIDDESC,NAMEASC"</param> ///<paramname="TotalCount">记录总数</param> ///<returns></returns> publicstaticDataSetGetList(stringconnectionString,stringOrder,intPageSize,intCurrentCount,stringTableName,stringWhere,outintTotalCount) { SqlParameter[]parmList= { newSqlParameter("@PageSize",PageSize), newSqlParameter("@CurrentCount",CurrentCount), newSqlParameter("@TableName",TableName), newSqlParameter("@Where",Where), newSqlParameter("@Order",Order), newSqlParameter("@TotalCount",SqlDbType.Int,4) }; parmList[5].Direction=ParameterDirection.Output; DataSetds=GetDataset(connectionString,CommandType.StoredProcedure,"sp_MvcPager",parmList); TotalCount=Convert.ToInt32(parmList[5].Value); returnds; } }

10.日志文件记录 

publicclassWriteLog { ///<summary> /// ///</summary> ///<paramname="fileName">文件名</param> ///<paramname="ex"></param> publicstaticvoidWriteErorrLog(stringfileName,Exceptionex) { if(ex==null)return;//ex=null返回 DateTimedt=DateTime.Now;//设置日志时间 stringtime=dt.ToString("yyyy-MM-ddHH:mm:ss");//年-月-日时：分：秒 stringlogName=dt.ToString("yyyy-MM-dd");//日志名称 stringlogPath=Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory,Path.Combine("log",fileName));//日志存放路径 stringlog=Path.Combine(logPath,string.Format("{0}.log",logName));//路径+名称 try { FileInfoinfo=newFileInfo(log); if(info.Directory!=null&&!info.Directory.Exists) { info.Directory.Create(); } using(StreamWriterwrite=newStreamWriter(log,true,Encoding.GetEncoding("utf-8"))) { write.WriteLine(time); write.WriteLine(ex.Message); write.WriteLine("异常信息："+ex); write.WriteLine("异常堆栈："+ex.StackTrace); write.WriteLine("异常简述："+ex.Message); write.WriteLine("rn----------------------------------rn"); write.Flush(); write.Close(); write.Dispose(); } } catch{} } ///<summary> /// ///</summary> ///<paramname="fileName">文件名</param> ///<paramname="message"></param> publicstaticvoidWriteMessage(stringfileName,stringmessage) { //ex=null返回 DateTimedt=DateTime.Now;//设置日志时间 stringtime=dt.ToString("yyyy-MM-ddHH:mm:ss");//年-月-日时：分：秒 stringlogName=dt.ToString("yyyy-MM-dd");//日志名称 stringlogPath=Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory,Path.Combine("log",fileName));//日志存放路径 stringlog=Path.Combine(logPath,string.Format("{0}.log",logName));//路径+名称 try { FileInfoinfo=newFileInfo(log); if(info.Directory!=null&&!info.Directory.Exists) { info.Directory.Create(); } using(StreamWriterwrite=newStreamWriter(log,true,Encoding.GetEncoding("utf-8"))) { write.WriteLine(time); write.WriteLine("信息："+message); write.WriteLine("rn----------------------------------rn"); write.Flush(); write.Close(); write.Dispose(); } } catch{} } publicstaticvoidWriteErorrLog(Exceptionex,stringmessage) { if(ex==null)return;//ex=null返回 DateTimedt=DateTime.Now;//设置日志时间 stringtime=dt.ToString("yyyy-MM-ddHH:mm:ss");//年-月-日时：分：秒 stringlogName=dt.ToString("yyyy-MM-dd");//日志名称 stringlogPath=System.AppDomain.CurrentDomain.BaseDirectory;//日志存放路径 stringlog=Path.Combine(Path.Combine(logPath,"log"),string.Format("{0}.log",logName));//路径+名称 try { FileInfoinfo=newFileInfo(log); if(info.Directory!=null&&!info.Directory.Exists) { info.Directory.Create(); } using(StreamWriterwrite=newStreamWriter(log,true,Encoding.GetEncoding("utf-8"))) { write.WriteLine(time); write.WriteLine(ex.Message); write.WriteLine("异常信息："+ex); write.WriteLine("异常堆栈："+ex.StackTrace); write.WriteLine("异常简述："+message); write.WriteLine("rn----------------------------------rn"); write.Flush(); write.Close(); write.Dispose(); } } catch{} } publicstaticvoidWriteMessage(stringmessage) { //ex=null返回 DateTimedt=DateTime.Now;//设置日志时间 stringtime=dt.ToString("yyyy-MM-ddHH:mm:ss");//年-月-日时：分：秒 stringlogName=dt.ToString("yyyy-MM-dd");//日志名称 stringlogPath=System.AppDomain.CurrentDomain.BaseDirectory;//日志存放路径 stringlog=Path.Combine(Path.Combine(logPath,"log"),string.Format("{0}.log",logName));//路径+名称 try { FileInfoinfo=newFileInfo(log); if(info.Directory!=null&&!info.Directory.Exists) { info.Directory.Create(); } using(StreamWriterwrite=newStreamWriter(log,true,Encoding.GetEncoding("utf-8"))) { write.WriteLine(time); write.WriteLine("信息："+message); write.WriteLine("rn----------------------------------rn"); write.Flush(); write.Close(); write.Dispose(); } } catch{} } }

11.JSON帮助类 

///<summary> ///JSON帮助类 ///</summary> publicclassJsonHelper { #region通用方法 ///<summary> ///格式化字符型、日期型、布尔型 ///</summary> publicstaticstringStringFormat(stringstr,Typetype) { if(type==typeof(string)) { str=StringFilter(str); str="""+str+"""; } elseif(type==typeof(DateTime)||type==typeof(DateTime?)) { str="""+str+"""; } elseif(type==typeof(bool)) { str=str.ToLower(); } elseif(type==typeof(Guid)) { str="""+str+"""; } elseif(type!=typeof(string)&&string.IsNullOrEmpty(str)) { str="""+str+"""; } returnstr; } ///<summary> ///过滤字符串 ///</summary> publicstaticstringStringFilter(stringstr) { StringBuildersb=newStringBuilder(); for(inti=0;i<str.Length;i++) { charc=str.ToCharArray()[i]; switch(c) { case'"': sb.Append("\"");break; case'\': sb.Append("\\");break; case'/': sb.Append("\/");break; case'b': sb.Append("\b");break; case'f': sb.Append("\f");break; case'n': sb.Append("\n");break; case'r': sb.Append("\r");break; case't': sb.Append("\t");break; default: sb.Append(c);break; } } returnsb.ToString(); } #endregion #region列转json ///<summary> ///列转json ///</summary> ///<paramname="dt">表</param> ///<paramname="r">列</param> publicstaticstringColumnToJson(DataTabledt,intr) { StringBuilderstrSql=newStringBuilder(); for(inti=0;i<dt.Rows.Count;i++) { strSql.Append(dt.Rows[i][r]); strSql.Append(","); } returnstrSql.ToString().Trim(','); } #endregion #region对象转json ///<summary> ///对象转json ///</summary> publicstaticstringToJson(objectjsonObject) { StringBuildersb=newStringBuilder(); sb.Append("{"); PropertyInfo[]propertyInfo=jsonObject.GetType().GetProperties(); for(inti=0;i<propertyInfo.Length;i++) { objectobjectValue=propertyInfo[i].GetGetMethod().Invoke(jsonObject,null); Typetype=propertyInfo[i].PropertyType; stringstrValue=objectValue.ToString(); strValue=StringFormat(strValue,type); sb.Append("""+propertyInfo[i].Name+"":"); sb.Append(strValue+","); } sb.Remove(sb.Length-1,1); sb.Append("}"); returnsb.ToString(); } #endregion #regionlist转json ///<summary> ///list转json ///</summary> publicstaticstringListToJson<T>(IList<T>list) { objectobj=list[0]; returnListToJson<T>(list,obj.GetType().Name); } privatestaticstringListToJson<T>(IList<T>list,stringJsonName) { StringBuilderJson=newStringBuilder(); if(string.IsNullOrEmpty(JsonName)) JsonName=list[0].GetType().Name; Json.Append("{""+JsonName+"":["); if(list.Count>0) { for(inti=0;i<list.Count;i++) { Tobj=Activator.CreateInstance<T>(); PropertyInfo[]pi=obj.GetType().GetProperties(); Json.Append("{"); for(intj=0;j<pi.Length;j++) { Typetype=pi[j].GetValue(list[i],null).GetType(); Json.Append("""+pi[j].Name.ToString()+"":"+StringFormat(pi[j].GetValue(list[i],null).ToString(),type)); if(j<pi.Length-1) { Json.Append(","); } } Json.Append("}"); if(i<list.Count-1) { Json.Append(","); } } } Json.Append("]}"); returnJson.ToString(); } #endregion #region对象集合转换为json ///<summary> ///对象集合转换为json ///</summary> ///<paramname="array">对象集合</param> ///<returns>json字符串</returns> publicstaticstringToJson(IEnumerablearray) { stringjsonString="["; foreach(objectiteminarray) { jsonString+=ToJson(item)+","; } jsonString=jsonString.Substring(0,jsonString.Length-1); returnjsonString+"]"; } #endregion #region普通集合转换Json ///<summary> ///普通集合转换Json ///</summary> ///<paramname="array">集合对象</param> ///<returns>Json字符串</returns> publicstaticstringToArrayString(IEnumerablearray) { stringjsonString="["; foreach(objectiteminarray) { jsonString=ToJson(item.ToString())+","; } jsonString.Remove(jsonString.Length-1,jsonString.Length); returnjsonString+"]"; } #endregion #regionDataSet转换为Json ///<summary> ///DataSet转换为Json ///</summary> ///<paramname="dataSet">DataSet对象</param> ///<returns>Json字符串</returns> publicstaticstringToJson(DataSetdataSet) { stringjsonString="{"; foreach(DataTabletableindataSet.Tables) { jsonString+="""+table.TableName+"":"+ToJson(table)+","; } jsonString=jsonString.TrimEnd(','); returnjsonString+"}"; } #endregion #regionDatatable转换为Json ///<summary> ///Datatable转换为Json ///</summary> publicstaticstringToJson(DataTabledt) { if(dt.Rows.Count>0) { StringBuilderjsonString=newStringBuilder(); jsonString.Append("["); DataRowCollectiondrc=dt.Rows; for(inti=0;i<drc.Count;i++) { jsonString.Append("{"); for(intj=0;j<dt.Columns.Count;j++) { stringstrKey=dt.Columns[j].ColumnName; stringstrValue=drc[i][j].ToString(); Typetype=dt.Columns[j].DataType; jsonString.Append("""+strKey+"":"); strValue=StringFormat(strValue,type); if(j<dt.Columns.Count-1) jsonString.Append(strValue+","); else jsonString.Append(strValue); } jsonString.Append("},"); } jsonString.Remove(jsonString.Length-1,1); jsonString.Append("]"); returnjsonString.ToString(); } else return"[]"; } ///<summary> ///DataTable转换为Json ///</summary> publicstaticstringToJson(DataTabledt,stringjsonName) { StringBuilderJson=newStringBuilder(); if(string.IsNullOrEmpty(jsonName)) jsonName=dt.TableName; Json.Append("{""+jsonName+"":["); if(dt.Rows.Count>0) { for(inti=0;i<dt.Rows.Count;i++) { Json.Append("{"); for(intj=0;j<dt.Columns.Count;j++) { Typetype=dt.Rows[i][j].GetType(); Json.Append("""+dt.Columns[j].ColumnName.ToString()+"":"+StringFormat(dt.Rows[i][j].ToString(),type)); if(j<dt.Columns.Count-1) Json.Append(","); } Json.Append("}"); if(i<dt.Rows.Count-1) Json.Append(","); } } Json.Append("]}"); returnJson.ToString(); } #endregion #regionDataReader转换为Json ///<summary> ///DataReader转换为Json ///</summary> ///<paramname="dataReader">DataReader对象</param> ///<returns>Json字符串</returns> publicstaticstringToJson(DbDataReaderdataReader) { StringBuilderjsonString=newStringBuilder(); jsonString.Append("["); while(dataReader.Read()) { jsonString.Append("{"); for(inti=0;i<dataReader.FieldCount;i++) { Typetype=dataReader.GetFieldType(i); stringstrKey=dataReader.GetName(i); stringstrValue=dataReader[i].ToString(); jsonString.Append("""+strKey+"":"); strValue=StringFormat(strValue,type); if(i<dataReader.FieldCount-1) jsonString.Append(strValue+","); else jsonString.Append(strValue); } jsonString.Append("},"); } dataReader.Close(); jsonString.Remove(jsonString.Length-1,1); jsonString.Append("]"); returnjsonString.ToString(); } #endregion #region返回错误 publicstaticstringerror() { DataTabledt=newDataTable(); dt.Columns.Add("error",typeof(int)); DataRowdr=dt.NewRow(); dr["error"]=1; dt.Rows.Add(dr); returnToJson(dt); } #endregion } 11.转换帮助类 publicclassConvertHelper { publicstaticintDateTimeToUnixInt(DateTimetime) { DateTimetime2=TimeZone.CurrentTimeZone.ToLocalTime(newDateTime(0x7b2,1,1)); TimeSpanspan=(TimeSpan)(time-time2); return(int)span.TotalSeconds; } publicstaticdecimalMoneyRound(decimalvalue,intdecimals) { if(value<0M) { returnMath.Round((decimal)(value+(5M/((decimal)Math.Pow(10.0,(double)(decimals+1))))),decimals,MidpointRounding.AwayFromZero); } returnMath.Round(value,decimals,MidpointRounding.AwayFromZero); } publicstaticdoubleMoneyRound(doublevalue,intdecimals) { if(value<0.0) { returnMath.Round((double)(value+(5.0/Math.Pow(10.0,(double)(decimals+1)))),decimals,MidpointRounding.AwayFromZero); } returnMath.Round(value,decimals,MidpointRounding.AwayFromZero); } publicstaticdecimalMoneyToDecimal(stringstr) { try { str=str.Replace(",",""); returndecimal.Parse(str); } catch { return0M; } } publicstaticdecimalRound(decimald,inti) { if(d>=0M) { d+=5M*((decimal)Math.Pow(10.0,(double)-(i+1))); } else { d+=-5M*((decimal)Math.Pow(10.0,(double)-(i+1))); } stringstr=d.ToString(); string[]strArray=str.Split(newchar[]{'.'}); intindex=str.IndexOf('.'); stringstr2=strArray[0]; stringstr3=strArray[1]; if(str3.Length>i) { str3=str.Substring(index+1,i); } d=decimal.Parse(str2+"."+str3); returnd; } publicstaticdoubleRound(doubled,inti) { if(d>=0.0) { d+=5.0*Math.Pow(10.0,(double)-(i+1)); } else { d+=-5.0*Math.Pow(10.0,(double)-(i+1)); } stringstr=d.ToString(); string[]strArray=str.Split(newchar[]{'.'}); intindex=str.IndexOf('.'); stringstr2=strArray[0]; stringstr3=strArray[1]; if(str3.Length>i) { str3=str.Substring(index+1,i); } d=double.Parse(str2+"."+str3); returnd; } publicstaticboolToBool(objecto) { returnToBool(o,false); } publicstaticboolToBool(objecto,boolDefaultValue) { boolflag; if(bool.TryParse(ToString(o,true),outflag)) { returnflag; } returnDefaultValue; } publicstaticDateTimeToDateTime(objecto) { returnToDateTime(o,DateTime.Now); } publicstaticDateTimeToDateTime(objecto,DateTimeDefaultValue) { DateTimetime; if(DateTime.TryParse(ToString(o,true),outtime)) { returntime; } returnDefaultValue; } publicstaticdecimalToDecimal(objecto) { returnToDecimal(o,0M); } publicstaticdecimalToDecimal(objecto,decimalDefaultValue) { decimalnum; if(decimal.TryParse(ToString(o,true),outnum)) { returnnum; } returnDefaultValue; } publicstaticdoubleToDouble(objecto) { returnToDouble(o,0.0); } publicstaticdoubleToDouble(objecto,doubleDefaultValue) { doublenum; if(double.TryParse(ToString(o,true),outnum)) { returnnum; } returnDefaultValue; } publicstaticfloatToFloat(objecto) { returnToFloat(o,0f); } publicstaticfloatToFloat(objecto,floatDefaultValue) { floatnum; if(float.TryParse(ToString(o,true),outnum)) { returnnum; } returnDefaultValue; } publicstaticintToInt(objecto) { returnToInt(o,0); } publicstaticintToInt(objecto,intDefaultValue) { intnum; if(int.TryParse(ToString(o,true),outnum)) { returnnum; } returnDefaultValue; } publicstaticlongToLong(objecto) { returnToLong(o,0L); } publicstaticlongToLong(objecto,longDefaultValue) { longnum; if(long.TryParse(ToString(o,true),outnum)) { returnnum; } returnDefaultValue; } publicstaticstringToMoney(objecto) { returnToDecimal(o).ToString("###,###,###,###,###,##0.##"); } publicstaticstringToMoney(stringstr) { try { returndecimal.Parse(str).ToString("###,###,###,###,###,##0.##"); } catch { return"0"; } } publicstaticstringToString(objecto) { returnToString(o,"",false); } publicstaticstringToString(objecto,boolbTrim) { returnToString(o,"",bTrim); } publicstaticstringToString(objecto,stringDefaultValue) { returnToString(o,DefaultValue,false); } publicstaticstringToString(objecto,stringDefaultValue,boolbTrim) { if(object.Equals(o,null)||Convert.IsDBNull(o)) { returnDefaultValue; } if(bTrim) { returno.ToString().Trim(); } returno.ToString(); } publicstaticDateTimeUnixIntToDateTime(stringtimeStamp) { DateTimetime=TimeZone.CurrentTimeZone.ToLocalTime(newDateTime(0x7b2,1,1)); longticks=long.Parse(timeStamp+"0000000"); TimeSpanspan=newTimeSpan(ticks); returntime.Add(span); } } 您可能感兴趣的文章:asp.net(c#)网页跳转七种方法小结C#几种截取字符串的方法小结C#DataGridView添加新行的2个方法C#入门教程之ListBox控件使用方法C#连接MySql数据库的方法C#中隐式运行CMD命令行窗口的方法C#读写文件的方法汇总c#的dllimport使用方法详解C#小数位数保留的方法集锦C#中使用split分割字符串的几种方法小结

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