有如下程序: #ineludeiostream usingnamespacestd; classTest { public: Test(){n+=2;} ~Test(){n-=3;} staticintgetNum(){returnn;} private: staticintn; }; intTest::n=1; intmain()Test*P=newTest: deleteP; cout"n="Test::getNum()endl; return0; } 执行后的输出结果是( )。A.n=0B.n=1C.n=2D.n=3

有如下程序: #inelude<iostream> usingnamespacestd; classTest { public: Test(){n+=2;} ~Test(){n-=3;} staticintgetNum(){returnn;} private: staticintn; }; intTest::n=1; intmain()

Test*P=newTest: deleteP; cout<<"n="<<Test::getNum()<<endl; return0; } 执行后的输出结果是( )。

A.n=0

B.n=1

C.n=2

D.n=3


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有如下程序: #include(iostream> using namespace std; Class Test { 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;A.n=0B.n=1C.n=2D.n=3

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