34.用指针删除堆中的内存空间

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#include <iostream>
using namespace std;
5 b' }) w6 @# M5 H/ zint main(void)
6 O% i4 X" N+ y  n  {% ]% d4 n{
! }# B6 _: ?" r2 I+ D# S* l9 z int *p=new int;
  r9 m" c9 d$ K! j) G' m$ v, z *p=1;
2 S5 R+ m0 [$ S/ g6 D7 s$ Y cout<<*p<<endl;
delete p;
1 \9 S. ?1 L! q! N. ` cout<<*p<<endl;
p=0;
p=new int;
* i* X+ n. L+ z# [; O *p=2;
/ E( U, C& A" w; K cout<<*p<<endl;
* p% O* f. f8 x* g$ V# P6 R& p delete p;
1 s( x+ s0 _* Q3 h/ ^9 b; X return 0;
, D" U" Z& a# u5 R}
6 W/ ]+ j+ l* u7 t; k