c++动态内存分配与释放

#include<iostream>
using namespace std;
int main()
{
int *p = new int(4);
*p = 10;
cout << *p << endl;
delete p;
return 0;
}

#include<iostream>
using namespace std;
int main()
{
char * p = new char[10];
p="hello";
cout << p << endl;
delete [] p;
return 0;
}