text: /*****************************
  **
  **测试环境：minGw gcc 5.1.0
  **测试int * p = malloc(0);p是否指向NULL
  **
  *****************************/
  #include<stdio.h>
  #include<stdlib.h>
  int main(void){
      int * p = (int *)malloc(0);
      printf("%d,%d\n",*(p),*(p+1024));
      free(p);
      
      //int * q = NULL;
      //printf("%d,%d\n",*(q),*(q+1024));
      return 0;
  }
  