C++对象数组的正确创建方式

#include <iostream>
using namespace std;
class Acct
{
public:
    // Define default constructor and a constructor that accepts
    //  an initial balance.
    Acct() {
		balance = 0.0;
		cout  << "no param create...."  << endl;
	}
    Acct( double init_balance ) {
		balance = init_balance;
		cout << "with param create..." << endl;
	}

~Acct(){
 		cout << "delete..." << endl;
	}
private:
    double balance;
};

​​​​​​​int main()
{
		//栈中创建对象数组
		Acct myAcct[6];
  		//堆中创建对象数组
	    Acct *CheckingAcct = new Acct[3];
	    Acct *SavingsAcct = new Acct[3] {Acct(34.98), Acct(131.4), Acct(521.1)};
		delete [] CheckingAcct;
		delete [] SavingsAcct ;
  // ...
}