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  int a[4] = {1,2,3,4};
  int b[4] = {5,6,7,18};
  //  double c = 20.3;
  printf("a[-1] is %d\n",a[-1]);
  printf("a[-4] is %d\n",a[-4]);
  printf("b[4] is %d\n",b[4]);
  ÔËÐнá¹ûΪ
a[-1] is 18
a[-4] is 5
b[4] is 1
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extern "C"
{
££i nclude "cExample.h"
}
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Àý£º#define NELE(a) (sizeof(a) / sizeof(a[0]))
int main() {
char str[] = {'E', 'M', 'C'};
for (int d=-1; d<=(NELE(str)-2);d++)
      printf("%c",str[d+1]);
return 0;
}
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