67 lines
745 B
C++
67 lines
745 B
C++
// 设已经有A,B,C,D 4个类的定义，程序中A,B,C,D析构函数调用顺序为（ ）
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#include <iostream>
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#include <cstring>
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#include <cstdlib>
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using namespace std;
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class A
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{
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public:
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A() { cout << "A()" << endl; }
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~A()
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{
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cout << "~A()" << endl;
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}
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};
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class B
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{
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public:
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B() { cout << "B()" << endl; }
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~B()
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{
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cout << "~B()" << endl;
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}
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};
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class C
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{
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public:
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C() { cout << "C()" << endl; }
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~C()
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{
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cout << "~C()" << endl;
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}
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};
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class D
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{
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public:
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D() { cout << "D()" << endl; }
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~D()
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{
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cout << "~D()" << endl;
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}
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};
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C c;
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int main()
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{
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A *pa = new A();
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B b;
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static D d;
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delete pa;
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}
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/*
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C()
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A()
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B()
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D()
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~A()
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~B()
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~D()
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~C()
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*/ |