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#include "car.h"
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int main()
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{
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Driver driver{"老王"};
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Tyre tyre{"倍耐力"};
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Car car1{tyre, driver};
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car1.print(); // 正常
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// 演示聚合可能的问题
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Driver *temp = new Driver{"临时"}; // 动态申请的司机对象
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Car car2{tyre, *temp};
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car2.print(); // 正常
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delete temp; // 释放司机对象
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car2.print(); // 触发未定义行为
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} |
