Heim  >  Artikel  >  Datenbank  >  C# SqlServer的Helper基类

C# SqlServer的Helper基类

WBOY
WBOYOriginal
2016-06-07 17:40:461363Durchsuche

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Collections; using System.Data; using System.Data.SqlClient; using System.Data.Common; namespace SqlServerDAL { public class SqlHelper { sta


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Data;
using System.Data.SqlClient;
using System.Data.Common;


namespace SqlServerDAL
{
public class SqlHelper
{
static string _SqlConnectionString;
public static string SqlConnectionString
{
get
{
return _SqlConnectionString;
}
set
{
_SqlConnectionString = value;
}
}


///


/// 设置参数内容
///

/// 名称
/// 数据类型
/// 长度大小
///
/// 类型
///
public static SqlParameter SetDataParameter(string ParamName, SqlDbType DbType, Int32 Size, object paramevalue, ParameterDirection Direction)
{
SqlParameter param = new SqlParameter();
param.SqlDbType = DbType;
param.ParameterName = ParamName;

if (Size > 0)
{
param.Size = Size;
}
if (paramevalue.ToString() != "" && paramevalue != null && Direction != ParameterDirection.Output)
{
param.Value = paramevalue;
}

param.Direction = Direction;
return param;
}
///
/// 设置参数内容
///

/// 名称
/// 数据类型
/// 类型
///
public static SqlParameter SetDataParameter(string ParamName, SqlDbType DbType, ParameterDirection Direction)
{
SqlParameter param = new SqlParameter();
param.SqlDbType = DbType;
param.ParameterName = ParamName;
param.Direction = Direction;
return param;
}

#region 私有办法
///
/// 将SqlParameter参数数组(参数值)分派给DbCommand号令.
/// 这个办法将给任何一个参数分派DBNull.Value;
/// 该操纵将阻拦默认值的应用.
///

/// 号令名
/// SqlParameters数组
private static void AttachParameters(SqlCommand command, SqlParameter[] commandParameters)
{
if (command == null) throw new ArgumentNullException("command");
if (commandParameters != null)
{
foreach (SqlParameter p in commandParameters)
{
if (p != null)
{
// 搜检未分派值的输出参数,将其分派以DBNull.Value.
if ((p.Direction == ParameterDirection.InputOutput || p.Direction == ParameterDirection.Input) &&
(p.Value == null))
{
p.Value = DBNull.Value;
}
command.Parameters.Add(p);
}
}
}
//应用完成后清除原所有参数值
// ClearIDataParameter();
}

///
/// 预处理惩罚用户供给的号令,数据库连接/事务/号令类型/参数
///

/// 一个有效的事务或者是null值
/// 号令类型 (存储过程,号令文本, 其它.)
/// 存储过程名或都SQL号令文本
/// 和号令相接洽关系的SqlParameter参数数组,若是没有参数为""null""
/// true 若是连接是打开的,则为true,其它景象下为false.
private static void PrepareCommand(SqlConnection Connection, SqlCommand Command, SqlTransaction transaction, CommandType commandType, string commandText, SqlParameter[] commandParameters, out bool mustCloseConnection)
{
try
{
if (Command == null) throw new ArgumentNullException("command");
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");

if (Connection.State != ConnectionState.Open)
{
mustCloseConnection = true;
Connection.Open();
}
else
{
mustCloseConnection = false;
}

// 给号令分派一个数据库连接.
Command.Connection = Connection;

// 设置号令文本(存储过程名或SQL语句)
Command.CommandText = commandText;

// 分派事务
if (transaction != null)
{
if (transaction.Connection == null) throw new ArgumentException("The transaction was rollbacked or commited, please provide an open transaction.", "transaction");
Command.Transaction = transaction;
}

// 设置号令类型.
Command.CommandType = commandType;

// 分派号令参数
if (commandParameters != null)
{
//SqlParameter[] dpitem =
AttachParameters(Command, commandParameters);
}
}
catch
{
mustCloseConnection = false;
}
}
#endregion

#region uteDataSet 数据表
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///

/// 存储过程名称或SQL语句
/// 返回一个包含成果集的DataSet
public static DataSet uteDataSet(string commandText)
{
return uteDataSet((SqlTransaction)null, commandText, CommandType.Text, (SqlParameter[])null);
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///

/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 参数
/// 返回一个包含成果集的DataSet
public static DataSet uteDataSet(SqlTransaction transaction, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{

connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
SqlDataAdapter sdap = new SqlDataAdapter();
sdap.SelectCommand = Command;

DataSet ds = new DataSet();
sdap.Fill(ds);
Command.Parameters.Clear();//清空

Command.Dispose();
if (mustCloseConnection)
connection.Close();
return ds;
}
catch (Exception ex)
{
Command.Parameters.Clear();//清空

Command.Dispose();
if (mustCloseConnection)
connection.Close();

return new DataSet();
}
}
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///

/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 返回一个包含成果集的DataSet
public static DataSet uteDataSet(string commandText, CommandType commandTytpe)
{
return uteDataSet((SqlTransaction)null, commandText, commandTytpe, (SqlParameter[])null);
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///

/// 输出输出参数成果凑集,例:{Name,Value}
/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 参数
/// 返回一个包含成果集的DataSet
public static DataSet uteDataSet(ref Hashtable outParameters, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{

connection.Open();

bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);
try
{
SqlDataAdapter sdap = new SqlDataAdapter();
sdap.SelectCommand = Command;

DataSet ds = new DataSet();
sdap.Fill(ds);

if (outParameters != null)
{
for (int i = 0; i {
if (Command.Parameters[i].Direction == ParameterDirection.Output)
{
if (!outParameters.Contains(Command.Parameters[i].ParameterName))
{
outParameters.Add(Command.Parameters[i].ParameterName, Command.Parameters[i].Value.ToString());
}
}
}
}
Command.Parameters.Clear();//清空

Command.Dispose();
if (mustCloseConnection)
connection.Close();
return ds;
}
catch (Exception ex)
{
Command.Parameters.Clear();//清空

Command.Dispose();
if (mustCloseConnection)
connection.Close();

return new DataSet();
}
}
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///

/// 输出输出参数成果凑集,例:{Name,Value}
/// 存储过程
/// 参数
/// 返回一个包含成果集的DataSet
public static DataSet uteDataSet(ref Hashtable outParameters, string SqlSPro, params SqlParameter[] commandParameters)
{
return uteDataSet(ref outParameters, SqlSPro, CommandType.StoredProcedure, commandParameters);
}
///
/// 履行指定命据库连接字符串的号令,返回DataSet.
///

/// 输出输出参数成果凑集,例:{Name,Value}
/// 存储过程
/// 参数
/// 返回一个包含成果集的DataSet
public static DataSet uteDataSet(string SqlSPro, params SqlParameter[] commandParameters)
{
Hashtable outParameters = null;
return uteDataSet(ref outParameters, SqlSPro, CommandType.StoredProcedure, commandParameters);
}
#endregion

#region uteScalar 返回成果集中的第一行第一列

///
/// 返回一条数据
///

///
///
///
///
///
public static object uteScalar(SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{

connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
try
{
PrepareCommand(connection, Command, transaction, commandType, commandText, commandParameters, out mustCloseConnection);
object rvalue = Command.uteScalar();
Command.Parameters.Clear();//清空
Command.Dispose();
if (mustCloseConnection)
connection.Close();
return rvalue;
}
catch (Exception ex)
{
Command.Parameters.Clear();//清空
if (mustCloseConnection)
connection.Close();

return null;
}

}
}
///
/// 返回一条数据
///

///
///
///
public static object uteScalar(CommandType commandType, string commandText)
{
return uteScalar((SqlTransaction)null, commandType, commandText, (SqlParameter[])null);
}
///
/// 返回一条数据
///

///
///
///
public static object uteScalar(CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
return uteScalar((SqlTransaction)null, commandType, commandText, commandParameters);
}
///
/// 返回一条数据
///

///
///
///
///
public static object uteScalar(CommandType commandType, string commandText, SqlTransaction transaction)
{
return uteScalar(transaction, commandType, commandText, (SqlParameter[])null);
}
///
/// 返回一第数据
///

///
///
public static object uteScalar(string commandText)
{
return uteScalar(CommandType.Text, commandText, (SqlTransaction)null);
}
#endregion

#region uteDataReader 数据浏览器

public static DbDataReader uteDataReader(SqlConnection connection, SqlTransaction transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (connection == null) throw new ArgumentNullException("connection");
DbDataReader reader = null;
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
try
{
PrepareCommand(connection, Command, transaction, commandType, commandText, commandParameters, out mustCloseConnection);

reader = Command.uteReader(System.Data.CommandBehavior.CloseConnection);

//reader = Command.uteReader(System.Data.CommandBehavior.CloseConnection);

Command.Parameters.Clear();//清空
//Command.Dispose();
}
catch (Exception ex)
{

}
return reader;
}
public static DbDataReader uteDataReader(SqlTransaction transaction, CommandType commandType, string commandText)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
SqlConnection connection = null;
try
{
connection = new SqlConnection(SqlConnectionString);

connection.Open();
return uteDataReader(connection, transaction, commandType, commandText, (SqlParameter[])null);
}
catch
{
// If we fail to return the SqlDatReader, we need to close the connection ourselves
if (connection != null) connection.Close();
throw;
}
}
public static DbDataReader uteDataReader(CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
SqlConnection connection = null;
try
{
connection = new SqlConnection(SqlConnectionString);

connection.Open();
return uteDataReader(connection, (SqlTransaction)null, commandType, commandText, commandParameters);
}
catch
{
// If we fail to return the SqlDatReader, we need to close the connection ourselves
if (connection != null) connection.Close();
throw;
}
}
public static DbDataReader uteDataReader(CommandType commandType, string commandText)
{
return uteDataReader(commandType, commandText, (SqlParameter[])null);
}
public static DbDataReader uteDataReader(string commandText)
{
return uteDataReader(CommandType.Text, commandText);
}
public static DbDataReader uteDataReader(SqlConnection connection, out List outParameters, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
DbDataReader reader = null;
outParameters = new List();
try
{
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);

reader = Command.uteReader(System.Data.CommandBehavior.CloseConnection);// (CommandBehavior.CloseConnection);
Command.Parameters.Clear();//清空
Command.Dispose();

}
catch (Exception ex)
{
}
return reader;
}
public static DbDataReader uteDataReader(out List outParameters, string SqlSPro, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
SqlConnection connection = null;
try
{
connection = new SqlConnection(SqlConnectionString);

connection.Open();
return uteDataReader(connection, out outParameters, SqlSPro, CommandType.StoredProcedure, commandParameters);
}
catch
{
// If we fail to return the SqlDatReader, we need to close the connection ourselves
if (connection != null) connection.Close();
throw;
}
}
#endregion

#region uteDataRow 返回成果集中第一行
///
/// 履行指定命据库连接字符串的号令,返回DataSet第一行.
///

/// 存储过程名称或SQL语句
/// 号令类型 (存储过程,号令文本或其它)
/// 参数
/// 返回一个包含成果集的DataSet中的第一行
public static DataRow uteDataRow(SqlTransaction transaction, string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
try
{
DataRow row = null;
DataSet ds = uteDataSet(transaction, commandText, commandType, commandParameters);
if (ds.Tables[0].Rows.Count > 0)
{
row = (DataRow)ds.Tables[0].Rows[0];
}
ds.Dispose();
return row;
}
catch
{
return null;
}
}
public static DataRow uteDataRow(string commandText, CommandType commandType)
{
return uteDataRow((SqlTransaction)null, commandText, commandType, (SqlParameter[])null);
}
public static DataRow uteDataRow(string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
return uteDataRow((SqlTransaction)null, commandText, commandType, commandParameters);
}
public static DataRow uteDataRow(string commandText)
{
return uteDataRow((SqlTransaction)null, commandText,香港服务器, CommandType.Text, (SqlParameter[])null);
}
#endregion

#region uteNonQuery办法
public static int uteNonQuery(ref Hashtable OutPut, string commandText, params SqlParameter[] commandParameters)
{
if (_SqlConnectionString == null || _SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(_SqlConnectionString))
{
connection.Open();
// 创建DbCommand号令,并进行预处理惩罚

bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, CommandType.StoredProcedure, commandText, commandParameters, out mustCloseConnection);

// 履行号令
int retval = Command.uteNonQuery();
for (int i = 0; i {
if (Command.Parameters[i].Direction == ParameterDirection.Output)
{
if (!OutPut.Contains(Command.Parameters[i].ParameterName.ToString()))
{
OutPut.Add(Command.Parameters[i].ParameterName.ToString(), Command.Parameters[i].Value.ToString());
}
}
}
// 清除参数,以便再次应用.
Command.Parameters.Clear();

Command.Dispose();

return retval;
}
}
///
/// DataTable批量添加到数据库
///

/// 要写入的表名
/// DataTable表
public static void CopyutNonQuery(string TableName, DataTable dt)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");
using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
using (SqlTransaction Trans = connection.BeginTransaction())
{
using (SqlBulkCopy sqlBC = new SqlBulkCopy(connection, SqlBulkCopyOptions.FireTriggers, Trans))
{
try
{
//一次批量的插入的数据量
sqlBC.BatchSize = dt.Rows.Count;
//超时之前操纵完成所容许的秒数,若是超时则事务不会提交 ,数据将回滚,所有已复制的行都邑从目标表中移除
sqlBC.BulkCopyTimeout = 360;

//設定 NotifyAfter 属性,以便在每插入10000 条数据时,呼唤响应事务。
// sqlBC.NotifyAfter = 1000;
// sqlBC.SqlRowsCopied += new SqlRowsCopiedEventHandler(OnSqlRowsCopied);

//设置要批量写入的表
sqlBC.DestinationTableName = TableName;

//自定义的datatable和数据库的字段进行对应
//sqlBC.ColumnMappings.Add("id", "tel");
//sqlBC.ColumnMappings.Add("name", "neirong");
//for (int i = 0; i //{
// sqlBC.ColumnMappings.Add(dtColum[i].ColumnName.ToString(), dtColum[i].ColumnName.ToString());
//}
//批量写入
sqlBC.WriteToServer(dt);
Trans.Commit();
}
catch
{
Trans.Rollback();
}

}
}
}
}
///
/// 履行指定命据库连接对象的号令
///

/// 号令类型(存储过程,号令文本或其它.)
/// T存储过程名称或SQL语句
/// SqlParamter参数数组
/// 返回影响的行数
public static int uteNonQuery(CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
// 创建DbCommand号令,并进行预处理惩罚

bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);

// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();

Command.Dispose();

return retval;
}
}
public static int uteNonQuery(SqlTransaction Transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{

bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand(); ;
PrepareCommand(Transaction.Connection, Command, Transaction, commandType, commandText, commandParameters, out mustCloseConnection);

try
{
// 履行号令
int retval = Command.uteNonQuery();

// 清除参数,以便再次应用.
Command.Parameters.Clear();
if (Transaction != null)
{
Transaction.Commit();
}

Command.Dispose();
if (mustCloseConnection)
{
Transaction.Connection.Close();
Transaction.Connection.Dispose();
}
return retval;
}
catch (Exception ex)
{
if (Transaction != null)
{
Transaction.Rollback();
}

Command.Dispose();
return 0;
}
}
public static int uteNonQuery(out int Scope_Identity, SqlTransaction Transaction, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{
Scope_Identity = 0;


bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(Transaction.Connection, Command, Transaction, commandType, commandText, commandParameters, out mustCloseConnection);

try
{
// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();
Command.CommandType = CommandType.Text;
Command.CommandText = "SELECT SCOPE_IDENTITY()";
Scope_Identity = int.Parse(Command.uteScalar().ToString());

Command.Dispose();
if (mustCloseConnection)
{
Transaction.Connection.Close();
Transaction.Connection.Dispose();
}
return retval;
}
catch (Exception ex)
{
Command.Dispose();
Transaction.Connection.Close();
Transaction.Connection.Dispose();
return 0;
}
}
///
/// 履行指定命据库连接对象的号令,并输出最后履行的成果编号
///

/// 输出最后履行成果
/// 号令类型(存储过程,号令文本或其它.)
/// T存储过程名称或SQL语句
/// SqlParamter参数数组
/// 返回影响的行数
public static int uteNonQuery(out int Scope_Identity, CommandType commandType, string commandText, params SqlParameter[] commandParameters)
{

Scope_Identity = 0;
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{

connection.Open();
// 创建DbCommand号令,并进行预处理惩罚

bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, commandType, commandText, commandParameters, out mustCloseConnection);

try
{
// 履行号令
int retval = Command.uteNonQuery();
// 清除参数,以便再次应用.
Command.Parameters.Clear();
Command.CommandType = CommandType.Text;
Command.CommandText = "SELECT SCOPE_IDENTITY()";
Scope_Identity = int.Parse(Command.uteScalar().ToString());

Command.Dispose();
return retval;
}
catch (Exception ex)
{

Command.Dispose();
return 0;
}
}
}
///
/// 履行指定命据库连接对象的号令
///

/// 一个有效的数据库连接对象
/// 号令类型(存储过程,号令文本或其它.)
/// 存储过程名称或SQL语句
/// 返回影响的行数
public static int uteNonQuery(CommandType commandType, string CommandText)
{
if (CommandText == null || CommandText.Length == 0) throw new ArgumentNullException("commandText");
return uteNonQuery(commandType, CommandText, (SqlParameter[])null);
}
///
/// 履行指定命据库连接对象的号令,将对象数组的值赋给存储过程参数.
///

/// 一个有效的数据库连接对象
/// 存储过程名
/// 分派给存储过程输入参数的对象数组
/// 返回影响的行数
public static int uteNonQuery(string spName,香港空间, params SqlParameter[] commandParameters)
{

if (spName == null || spName.Length == 0) throw new ArgumentNullException("spName");

// 若是有参数值
if ((commandParameters != null) && (commandParameters.Length > 0))
{
return uteNonQuery(CommandType.StoredProcedure, spName, commandParameters);
}
else
{
return uteNonQuery(CommandType.StoredProcedure, spName);
}
}

///
/// 履行带事务的SQL语句
///

///
///
public static int uteNonQuery(string commandText)
{
if (commandText == null || commandText.Length == 0) throw new ArgumentNullException("commandText");
//SqlTransaction Transaction = BBDataProvider.Transaction;
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
SqlTransaction Transaction = connection.BeginTransaction();

return uteNonQuery(Transaction, CommandType.Text, commandText, (SqlParameter[])null);
}
}
///
/// 履行存储过程,返回Output成果
///

/// 存储过程名
/// 号令类型(存储过程)
/// SqlParamter参数数组
/// Output成果
public static List uteNonQuery(string commandText, CommandType commandType, params SqlParameter[] commandParameters)
{
if (SqlConnectionString == null || SqlConnectionString.Length == 0) throw new ArgumentNullException("ConnectionString");

using (SqlConnection connection = new SqlConnection(SqlConnectionString))
{
connection.Open();
bool mustCloseConnection = false;
SqlCommand Command = new SqlCommand();
PrepareCommand(connection, Command, (SqlTransaction)null, CommandType.StoredProcedure, commandText, commandParameters, out mustCloseConnection);
try
{
Command.uteNonQuery();
}
catch { }

List outParameters = new List();
for (int i = 0; i {
if (Command.Parameters[i].Direction == ParameterDirection.Output)
{
string[] parameteritem = { Command.Parameters[i].ParameterName.ToString(), Command.Parameters[i].Value.ToString() };
outParameters.Add(parameteritem);
}
}
Command.Parameters.Clear();//清空

Command.Dispose();
if (mustCloseConnection)
connection.Close();
return outParameters;
}
}

#endregion
}
} ,美国服务器

Stellungnahme:
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn