摘要：语法一：privatestaticvoidCreateCommand(stringqueryString,stringconnectionString){using(SqlConnectionconnection=newSqlConnection(connectionString)){SqlCommandcommand=newSqlCommand(queryString,connection);command.Connection.Open();command.ExecuteNonQuery();}}该方法直接执行更新数据库的语句，返回受影响的行数詳見：http://msdn.microsof 阅读全文