c++ - 构造函数中的计数器

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9年前关闭。




如何在构造函数中放置一个计数器？

最佳答案

如果要计算已创建对象的数量，可以使用静态(类)变量

class CountingClass {
private:
  static int count;
public:
  CountingClass() {
    ++CountingClass::count;
  }
};