关于HIDEmuKbd工程一直发送键值A的问题。

如题，在该工程下，我把函数的代码稍作修改，

static void hidEmuKbd_HandleKeys( uint8 shift, uint8 keys )
{static uint8 prevKey1 = 0;static uint8 prevKey2 = 0;//static uint8 index = 0;//可以参考Nordic的代码(void)shift;  // Intentionally unreferenced parameterif ( (keys & HAL_KEY_SW_1) && (prevKey1 == 0) ){// pressedhidEmuKbdSendReport( HID_KEYBOARD_A );//HID_KEYBOARD_AprevKey1 = 1;}
 /* else if (!(keys & HAL_KEY_SW_1) && (prevKey1 == 1) ){// releasedhidEmuKbdSendReport( KEY_NONE );prevKey1 = 0;}*///for test key2if ( (keys & HAL_KEY_SW_2) && (prevKey2 == 0) ){// pressedhidEmuKbdSendReport( KEY_RIGHT_ARROW );//HID_KEYBOARD_AprevKey2 = 1;}else if ( !(keys & HAL_KEY_SW_2) && (prevKey2 == 1) ){// releasedhidEmuKbdSendReport( KEY_NONE );prevKey2 = 0;}
/*if ( (keys & HAL_KEY_SW_2) && (prevKey2 == 0) ){// pressedif ( !hidBootMouseEnabled ){hidEmuKbdSendReport( KEY_RIGHT_ARROW );//HID_KEYBOARD_M}else{hidEmuKbdSendMouseReport( MOUSE_BUTTON_1 );}prevKey2 = 1;}else if ( !(keys & HAL_KEY_SW_2) && (prevKey2 == 1) ){// releasedaaaaaaaaaaaaaaaaaaaaaif ( !hidBootMouseEnabled ){hidEmuKbdSendReport( KEY_NONE );}else{hidEmuKbdSendMouseReport ( MOUSE_BUTTON_NONE );}prevKey2 = 0;}*/
}

编译下载后，在文本文件中，按下HAL_KEY_SW_1这个键，电脑一直打印字符，从程序来看，这条语句应该是只执行了一次：

if ( (keys & HAL_KEY_SW_1) && (prevKey1 == 0) )
  {
    // pressed
    hidEmuKbdSendReport( HID_KEYBOARD_A );//HID_KEYBOARD_A
    prevKey1 = 1;
  }

从而A的键值也只发送了一次，那么为什么会一直打印字符A呢？求解。

Yan：

Xuelin,

应该是release 按键没有发送出去。。。