34.用指针删除堆中的内存空间

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#include <iostream>
$ h5 o: w0 x3 N5 e* |using namespace std;
int main(void)
2 L" ?$ r( w8 l- C. v( A6 i{
! S/ |' C& B0 S int *p=new int;
' M% n8 L0 J; z3 d9 p' o/ O *p=1;
cout<<*p<<endl;
0 |  a* y0 V* a- B! b/ V delete p;
  I7 [. [" s# b) e( A cout<<*p<<endl;
+ E1 C$ l$ c9 ]4 k# l4 `% J8 w, f p=0;
p=new int;
*p=2;
: |' e2 x9 P* o  x* E cout<<*p<<endl;
4 j- u. _+ j5 i delete p;
: y* n: M5 O; P# l7 j6 R$ u/ x return 0;
/ [  u9 ^; w; r/ S}
+ W; l- q6 C, ?: U% }