C++的学习记录 - 01

 1 # include <iostream>
 2 # include <cstdlib>
 3 using namespace std;
 4 
 5 int main()
 6 {
 7     int *p;
 8     if((p = new int(5)) == 0)
 9     {
10         cout<<"can‘t allocate more memory, terminating.."<<endl;
11         exit(1);
12     }
13     
14     cout<<"Before deleting:"<<endl;
15     cout<<"p = "<<p<<endl;
16     cout<<"*p = "<<*p<<endl<<endl;
17     
18     delete p;
19     
20     cout<<"After deleting:"<<endl;
21     cout<<"p = "<<p<<endl;
22     cout<<"*p = "<<*p<<endl;
23     
24     return 0;
25 }