本文共 583 字，大约阅读时间需要 1 分钟。

typedef  struct _t{
       int** p;}T;void test(int **p){
       int** t = (int **)realloc(p,80000);    p = t;    cout << p << endl;}void test2(T *n){
       int** t = (int **)realloc(n->p,80000);    n->p = t;    cout << n->p << endl;}int main(){
       int **p = (int **)malloc(4);    cout << p << endl;	test(p);    cout << p << endl;    T n;    int **p2 = (int **)malloc(4);    n.p = p2;    //n.p = (int **)malloc(4);    cout <
   
    << endl;	test2(&n);    cout << n.p << endl;	return 0;}
   

//结果0x7fcef74029c00x7fcef78050000x7fcef74029c00x7fcef74029c00x7fcef7818a000x7fcef7818a00

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