34.用指针删除堆中的内存空间

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#include <iostream>
using namespace std;
2 V3 ^! Z8 X1 u) U' J/ e7 @% Y" J. `int main(void)
" L6 Q" C/ b# s  r/ d; ~( i$ W{
, T1 f  @# t' |& g3 e int *p=new int;
*p=1;
cout<<*p<<endl;
delete p;
cout<<*p<<endl;
p=0;
" `* `. d3 d) j$ s p=new int;
*p=2;
: \. g4 L& u8 f+ L: j* I' [ cout<<*p<<endl;
7 \! {& F0 Q! I) c; b2 S delete p;
1 u5 u" ^1 N7 ?7 K* V$ p# O. k; H+ J return 0;
/ R' r+ `  g% g2 a1 Z- j}