求大神解释C语言题，请解释详细一点，谢谢

Question

下面的代码输出什么？
#include
int main(void)
{
int i;
int a[5];
for （i = 0; i <= 5; ++i) {
a[i] = -i;
printf("a[%d] = %d\n", i, a[i]);
}
return 0;
}

Answer 1

 #include<stdio.h>
void main()
{
    int i=0;
    int a[5]={0,0,0,0,0};
    for (i = 0; i <= 5; i++) {
        a[i] = -i;
        printf("a[%d] = %d\n", i, a[i]);
        if(i==4){
            printf("%p\n",&i);
            printf("%p\n",&a[0]);
            printf("%p\n",&a[1]);
            printf("%p\n",&a[2]);
            printf("%p\n",&a[3]);
            printf("%p\n",&a[4]);
            while(1);
        }
    }
}

运行结果：