问答题

有下列程序:
#include<iostream>
using namespace std;
classTest
public:
Test() n+=2;
~Test() n-=3;
static int getNum()return n;
private:
static int n;
;
int Test::n=1;
int main()
Test*p=new Test;
delete p;
cout<<"n="<<Test::getNum()<<endl;
retum 0;
执行后的输出结果是( )。

【参考答案】

A