57 lines
940 B
C++
57 lines
940 B
C++
// 构造函数的分类与调用
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#include <iostream>
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#include <bitset>
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using namespace std;
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class C
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{
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private:
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int x, y;
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public:
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C(int x)
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{
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this->x = x;
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}
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C(int x, int y)
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{
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this->x = x;
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this->y = y;
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}
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C(const C &other)
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{
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this->x = other.x;
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this->y = other.y;
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}
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void show()
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{
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cout << "x = " << x << ", y = " << y << endl;
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}
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~C()
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{
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cout << this << "释放资源" << endl;
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}
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};
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int main()
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{
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cout << "C(0,1) 之前" << endl;
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C(0, 1); // 匿名创建的类对象，创建完后就直接释放了
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cout << "C(0,1) 之后" << endl;
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C c1(1, 2);
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c1.show();
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C c2 = (1, 5); // 使用单参数构造函数 C(int x), 然后将其改为 ", 运算" 后面的值
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// C c2 = 1;
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c2.show();
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C c3 = C(3, 4);
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c3.show();
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C c4(c3);
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c4.show();
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C &c5 = c4;
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c5.show();
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return 0;
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}
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