82 lines
1.3 KiB
C++
82 lines
1.3 KiB
C++
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// 立方体类与应用
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#include <iostream>
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using namespace std;
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class Cube
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{
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public:
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void init(int l, int w, int h)
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{
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this->a = l;
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this->b = w;
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this->c = h;
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}
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int S(); // 面积
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int V(); // 体积
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void show();
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bool isEqual(Cube &tmp);
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private:
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int a; // 长
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int b; // 宽
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int c; // 高
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};
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int Cube::S()
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{
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return 2 * (a * b + a * c + b * c);
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}
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int Cube::V()
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{
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return a * b * c;
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}
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void Cube::show()
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{
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cout << "S = " << S() << ", V = " << V() << endl;
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}
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bool Cube::isEqual(Cube &tmp)
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{
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// if (this->a == tmp.a && this->b == tmp.b && this->c == tmp.c)
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if (this->S() == tmp.S() && this->V() == tmp.V())
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return true;
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else
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return false;
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}
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bool equalCube(Cube &c1, Cube &c2)
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{
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if (c1.S() == c2.S() && c1.V() == c2.V())
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return true;
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return false;
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}
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const char *resBool(bool b) // bool 数字值转换人类可读
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{
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if (b != 0)
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return "true";
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return "false";
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}
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int main()
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{
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Cube c1, c2, c3;
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c1.init(2, 3, 4);
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cout << "c1: " << endl;
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c1.show();
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c2.init(3, 4, 5);
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cout << "c2: " << endl;
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c2.show();
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c3.init(4, 2, 3);
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cout << "Cube::isEqual(c2) = " << resBool(c1.isEqual(c2)) << endl;
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cout << "equalCube(c1, c2) = " << resBool(equalCube(c1, c3)) << endl;
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return 0;
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}
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