error: declaration may not appear after executable statement in block
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这个问题是在编译STM32的程序时遇到的，这个错误的原因是对于变量的声明不能放在可执行语句后面，必须在主函数开头声明变量。在程序中声明一个变量时，需要在可执行语句之前声明，否则会出现以上错误。
在keil中编写stm32代码报错如标题
错误代码部分如下
void EXTIX_Init(void)
{
Edge_Io_Init();
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//使能复用功能时钟
修改为如下即可
void EXTIX_Init(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
Edge_Io_Init();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//使能复用功能时钟
在keil中编写stm32代码报错如标题
错误代码部分如下
void EXTIX_Init(void)
{
Edge_Io_Init();
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//使能复用功能时钟
修改为如下即可
void EXTIX_Init(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
Edge_Io_Init();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);//使能复用功能时钟
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