重写这个循环

Question

需要帮助来重写这个循环，我觉得我已经离开了，并确定它不是正确的方法，它是唯一阻止我的程序运行。任何人都可以带领我朝着正确的方向前进。如果您需要更多信息，请告诉我

//--modifier
  void student::completedCourse(double credits, double numericGrade)

  {
      my_credits += credits;
      for (my_qualityPoints; credits; numericGrade;) 
  }

这是来自头文件

//--modifier
  void completedCourse(double credits, double numericGrade);
  // post: record a completed course by adding credits to my_credits
  //       and incrementing the qualityPoints by (credits * numericGrade)
  //          aStudent.completedCourse(4.0, 3.67)  // a 4 credit A- perhaps

Answer 1

假设有一个成员变量my_qualityPoints，我也认为my_credits也是。

不确定你为什么要在那里做一个循环;你在my_credits增量的正确轨道上。

void student::completedCourse(double credits, double numericGrade)
{
    my_credits += credits;
    my_qualityPoints += credits * numericGrade;
}