//swoole直接操作系统的内存 单线程每秒可执行三百万次  主要用于进程间的数据通信     $swoole_table = new swoole_table(1024);//1024为内创建内存对象所能存储的最大行数     //创建内存表的字段     $swoole_table->column('id', $swoole_table::TYPE_INT, 4 );     $swoole_table->column('name', $swoole_table::TYPE_STRING, 64 );     $swoole_table->column('age', $swoole_table::TYPE_INT, 3);     $swoole_table->create();     //内存表内添加一列     //第一个参数为key,第二个参数value     $swoole_table->set('zonehoo',['id' =>'1','name'=>'zonehoo','age'=>'18']);     //写成数组的形式     $swoole_table['zonehoo_2'] = [         'id' => 2,         'name'  =>  'zonehoo2',         'age'   =>  19,     ];     //获取     print_r($swoole_table->get('zonehoo')); //    print_r($swoole_table->get('zonehoo_2'));     print_r($swoole_table['zonehoo_2']);     //表内某一值增加     $swoole_table->incr('zonehoo_2','age','2');     print_r($swoole_table['zonehoo_2']);     //表内某一值减     $swoole_table->decr('zonehoo_2','age','1');     print_r($swoole_table['zonehoo_2']);