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。
例:
vu16 KeyPortState=0;
KeyScanState_Typedef KeyScanState=KeyScanState_0;
以上编译会出项错误,原因是KeyScanState_Typedef KeyScanState=KeyScanState_0; 出现在SystemInit();之后。
正确的函数语句段是:
vu16 KeyPortState=0;
KeyScanState_Typedef KeyScanState=KeyScanState_0;
SystemInit();
GPIO_Configuration();
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