includestm32f10xhvoidDelay(unsignedintx);延时voidGPIO_Configuration(void);IO口配置voidUART_Init(void);串口
includestm32f10xhvoidDelay(unsignedintx);unsignedintTimingDelay;intmain(void){SystemInit();配置系统时钟RCC
分别按下S1~S4，D1~D4分别点亮includestm32f10xhvoidDelay(unsignedintx);intmain(void){RCC_APB2PeriphClockCmd(RCC
