1， #include<iostream> 2 2 #include<string> 3 3 using namespace std; 4 4 class test{ 5 5 int i; 6 6 public: 7 7 test(int i){ 8 8 cout << "test(int i)" << i << endl; 9 9 this->i = i; 10 10 } 11 11 int get(){ 12 12 return i; 13 13 } 14 14 ~test(){} 15 15 }; 16 16 class pointer{ 17 17 test* mp; 18 18 public: 19 19 pointer(test*p = NULL){ 20 20 mp = p;//成员变量赋值 21 21 } 22 22 test* operator->(){ 23 23 return mp; 24 24 } 25 25 test& operator*(){ 26 26 return *mp; 27 27 } 28 28 ~pointer(){ 29 29 cout << "~pointer()" << endl; 30 30 delete mp; 31 31 } 32 32 }; 33 33 int main(){ 34 34 for(int i=0;i<5;i++){ 35 35 pointer p = new test(i); 36 36 cout << p->get() << endl; 37 37 } 38 38 return 0; 39 39 } 40 //结果 41 test(int i)0 42 0 43 ~pointer() 44 test(int i)1 45 1 46 ~pointer() 47 test(int i)2 48 2 49 ~pointer() 50 test(int i)3 51 3 52 ~pointer() 53 test(int i)4 54 4 55 ~pointer()