指针 (更换地址保存的地址)
1 /* 2 指针 (更换地址保存的地址) 3 2017-1-11 16:59:24 4 5 */ 6 7 8 # include <iostream> 9 using namespace std; 10 int main() 11 { 12 int i=10,j=20; 13 int *p=&i;//"p"是一个地址；"*p"是一个值 14 cout<<i<<endl; 15 cout<<&i<<endl; 16 cout<<j<<endl; 17 cout<<&j<<endl; 18 cout<<p<<endl; 19 cout<<*p<<endl; 20 p=&j; //地址和值都会被代替 21 cout<<"更换地址后"<<endl; 22 cout<<i<<endl; 23 cout<<&i<<endl; 24 cout<<j<<endl; 25 cout<<&j<<endl; 26 cout<<p<<endl; 27 cout<<*p<<endl; 28 return 0; 29 30 }
