notify主机如何读取？

如下述代码所示，加入处理notify和indicate的分支
else if ( pMsg->method == ATT_HANDLE_VALUE_NOTI ||
pMsg->method == ATT_HANDLE_VALUE_IND )
static void simpleBLECentralProcessGATTMsg( gattMsgEvent_t *pMsg )[  if ( simpleBLEState != BLE_STATE_CONNECTED )  [    // In case a GATT message came after a connection has dropped,    // ignore the message    return;  ]    if ( ( pMsg->method == ATT_READ_RSP ) ||       ( ( pMsg->method == ATT_ERROR_RSP ) &&         ( pMsg->msg.errorRsp.reqOpcode == ATT_READ_REQ ) ) )  [    if ( pMsg->method == ATT_ERROR_RSP )    [      uint8 status = pMsg->msg.errorRsp.errCode;            //LCD_WRITE_STRING_VALUE( "Read Error", status, 10, HAL_LCD_LINE_1 );    ]    else    [      // After a successful read, display the read value      uint8 valueRead = pMsg->msg.readRsp.value[0];      //LCD_WRITE_STRING_VALUE( "Read rsp:", valueRead, 10, HAL_LCD_LINE_1 );    ]        simpleBLEProcedureInProgress = FALSE;  ]  else if ( ( pMsg->method == ATT_WRITE_RSP ) ||       ( ( pMsg->method == ATT_ERROR_RSP ) &&         ( pMsg->msg.errorRsp.reqOpcode == ATT_WRITE_REQ ) ) )  [        if ( pMsg->method == ATT_ERROR_RSP == ATT_ERROR_RSP )    [      uint8 status = pMsg->msg.errorRsp.errCode;            //LCD_WRITE_STRING_VALUE( "Write Error", status, 10, HAL_LCD_LINE_1 );    ]    else    [      // After a succesful write, display the value that was written and increment value      //LCD_WRITE_STRING_VALUE( "Write sent:", simpleBLECharVal++, 10, HAL_LCD_LINE_1 );    ]        simpleBLEProcedureInProgress = FALSE;      ]  else if ( pMsg->method == ATT_HANDLE_VALUE_NOTI ||       pMsg->method == ATT_HANDLE_VALUE_IND )  [        if(pMsg->msg.handleValueNoti.handle == 0x001B)    [        //在此处处理notify，注意对应的handle替换成正确的值    ]    else if(pMsg->msg.handleValueInd.handle == 0x001F)    [             //在此处处理indicate，注意对应的handle替换成正确的值        ATT_HandleValueCfm(simpleBLEConnHandle);          ]      ]    else if ( simpleBLEDiscState != BLE_DISC_STATE_IDLE )  [    simpleBLEGATTDiscoveryEvent( pMsg );  ]  ]

问题解决了，非常感谢~

请问一下，为什么会这样呢？？？

还有个问题咨询下，主机通过从机notify对应的handle+1  去写入0x0001打开notify，这个是协议规定的还是可以随意修改的？