ex9-1.c

嵌入式系统基础课件

#include <stdio.h>

int main()
	{
	int a= 1 ;
	printf("a=%d\n", a) ;

	if (1)
		{
		char a = '2' ;
		printf("a=%c\n", a) ;
		}

	printf("a=%d\n", a) ;
	return 0 ;
	}