34.用指针删除堆中的内存空间

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#include <iostream>
- J' U" p2 t1 u; L$ T2 Gusing namespace std;
int main(void)
{
int *p=new int;
*p=1;
cout<<*p<<endl;
delete p;
7 q5 h3 U  s4 i; F5 S' i+ |0 l cout<<*p<<endl;
p=0;
p=new int;
$ v7 K5 E; k0 Z# Y2 |, P; [ *p=2;
# s: i$ V$ C( \, C" A! S1 X4 h cout<<*p<<endl;
! P6 k) C( m1 ]- W) p5 Y/ a  Q delete p;
/ s& |1 E+ `' ^ return 0;
5 I+ k3 g. r7 ?}