1 #include<iostream> 2 using namespace std; 3 4 5 6 int main() 7 { 8 int i = 10; 9 int *p; 10 p = &i; 11 int *p1; 12 p1 = p; 13 14 /* 15 &i:003AFA30 16 &p:003AFA24 17 p:003AFA30 18 *p:10 19 p1:003AFA30 20 &p1:003AFA18 21 *p1:10 22 23 => &i = p = p1 24 => *p = *p1 25 */ 26 cout << "&i:"<< &i << endl; 27 cout << "&p:" << &p << endl; 28 cout << "p:" << p << endl; 29 cout << "*p:" << *p << endl; 30 cout << "p1:"<< p1 << endl; 31 cout << "&p1:" << &p1 << endl; 32 cout << "*p1:" << *p1 << endl; 33 cout << "--------------------------------" << endl; 34 35 36 int **p2 = NULL; 37 int *p3 = NULL; 38 int *p4 = NULL; 39 int j = 20; 40 41 p3 = &j; 42 p4 = p3; 43 p2 = &p3; 44 /* 45 &j:0074FBF8 46 p3:0074FBF8 47 *p3:20 48 &p3:0074FC10 49 p4:0074FBF8 50 &p4:0074FC04 51 *p4:20 52 p2:0074FC10 53 &p2:0074FC1C 54 *p2:0074FBF8 55 **p2:20 56 57 => &j = p3 = p4 58 => p2 = &p3 59 => *p2 = &j 60 => **p2 = j 61 */ 62 cout << "&j:" << &j << endl; 63 cout << "p3:" << p3 << endl; 64 cout << "*p3:" << *p3 << endl; 65 cout << "&p3:" << &p3 << endl; 66 cout << "p4:" << p4 << endl; 67 cout << "&p4:" << &p4 << endl; 68 cout << "*p4:" << *p4 << endl; 69 cout << "p2:" << p2 << endl; 70 cout << "&p2:" << &p2 << endl; 71 cout << "*p2:" << *p2 << endl; 72 cout << "**p2:" << **p2 << endl; 73 cout << "--------------------------------" << endl; 74 75 int ***k, **k1, *k2; 76 int m = 30; 77 78 k2 = &m; 79 k1 = &k2; 80 k = &k1; 81 /* 82 &m:009BFB68 83 k2:009BFB68 84 &k2:009BFB74 85 *k2:30 86 k1:009BFB74 87 &k1:009BFB80 88 *k1:009BFB68 89 k:009BFB80 90 &k:009BFB8C 91 *k:009BFB74 92 **k:009BFB68 93 ***k:30 94 95 => &m = k2 = *k1 = **k 96 => &k2 = k1 = *k 97 => &k1 = k 98 => *k2 = ***k 99 */ 100 cout << "&m:"<<&m << endl; 101 cout << "k2:" << k2 << endl; 102 cout << "&k2:" << &k2 << endl; 103 cout << "*k2:" << *k2 << endl; 104 cout << "k1:" << k1 << endl; 105 cout << "&k1:" << &k1 << endl; 106 cout << "*k1:" << *k1 << endl; 107 cout << "k:" << k << endl; 108 cout << "&k:" << &k << endl; 109 cout << "*k:" << *k << endl; 110 cout << "**k:" << **k << endl; 111 cout << "***k:" << ***k << endl; 112 113 cout<<"hello"<<endl; 114 system("pause"); 115 return 0; 116 }