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32单片机一个变量多个.c里使用
2022-06-23 03:49:00 【雪无香】
办法:在其他文件正常定义一个变量(可以初始化),主函数或其他函数需要使用该变量。在变量定义前加extern(不可初始化)
key.c文件中
uint16_t a;
main.c文件中
int main(void)
{
extern uint16_t a;
}
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