The correct operation of the embedded blue bridge cup LED latch is turned on at high level and turned off at low level to solve the problem of LCD affecting the operation of LED lights

	GPIO_SetBits(GPIOC,GPIO_Pin_All);
	GPIO_ResetBits(GPIOC,led<<8);

	GPIO_SetBits(GPIOD,GPIO_Pin_2);	
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);