1 #include 
     
       2 #include 
      
        3  4  5 typedef struct { 6     int a; 7     char * ch;  8     int aa;  9 }node;10 11 int main()12 {13     int *i = NULL;14     int ii = 10; 15     i = ⅈ16     printf("local %p\n", i); 17     node * aa = (node*)malloc(sizeof(node));18     printf("local %p\n", aa->ch);19     if(aa->ch ==NULL){20         printf("local %p\n", aa->ch);21     }   22     23     node bb; 24     printf("local %p\n", bb.ch);25     free(aa);26     return 0;27 }
      
     

root@u18:~/cp/test# ./a.out