有三个键，分别是 KEY_PLAY KEY_UP KEY_DOWN #define KEY_PLAY 0
#define KEY_UP 1
#define KEY_DOWN 2
#define KEY_DEL 3
#define KEY_PORT  0
#define KEY_PORT_PU 0_PU
#define KEY_PORT_DDR 0_DDR
#define KEY_MARK (BIT(KEY_DEL)|BIT(KEY_DOWN)|BIT(KEY_UP)|BIT(KEY_PLAY))
#define KEY_0S_PLAY BIT(KEY_PLAY)
#define KEY_0S_UP BIT(KEY_UP)
#define KEY_0S_DOWN BIT(KEY_DOWN)
#define KEY_0S_DEL BIT(KEY_DEL)
#define KEY_1S_PLAY BIT(KEY_PLAY+4)
#define KEY_1S_UP BIT(KEY_UP+4)
#define KEY_1S_DOWN BIT(KEY_DOWN+4)
#define KEY_1S_DEL BIT(KEY_DEL+4)
#define KEY_2S_PLAY BIT(KEY_PLAY+8)
#define KEY_2S_UP BIT(KEY_UP+8)
#define KEY_2S_DOWN BIT(KEY_DOWN+8)
#define KEY_2S_DEL BIT(KEY_DEL+8)
#define KEY_REP_PLAY BIT(KEY_PLAY+12)
#define KEY_REP_UP BIT(KEY_UP+12)
#define KEY_REP_DOWN BIT(KEY_DOWN+12)
#define KEY_REP_DEL BIT(KEY_DEL+12)
现在KEY_PLAY可以长短按，其他两个却不行！ void Key_Scan( void )
{
Key_IO_Set();
if( keydataio = (~KEY_PORT)&KEY_MARK )
{
if( PowerDownCount ) PowerDownCount = ModePower;
if( keydata == keydataio )
{
if( !(keycnt%keyrepcount) ) pub_keydata |= (keydata&0xF)<<12;
if( keycnt++ <= KEY_CNT2S )
{
if( keycnt == KEY_CNT2S ) pub_keydata |= (keydata&0x9)<<8;
if( keycnt == KEY_CNT0S+1 ) pub_keydata |= (keydata&0x6);
}
keycnt &= 0x7FFFU;
}
else keydata = keydataio;
}
else
{
if( keycnt )
{
if( keycnt < KEY_CNT2S ) pub_keydata |= (keydata&0x9)<<4;
keycnt = 0;
}
if( PowerDownCount ) PowerDownCount--;
}
Key_IO_Clear(); if( Time_Count ) Time_Count--;
}
有人知道怎么设置不！？ | 
