列尾增加一列内容：总评成绩，总评成绩 = 平时成绩 * 40% + 期中成绩 * 10% + 期末成绩 * 50%；

可以在设计的类中增加一个方法用于计算总评成绩，并在该类的对象中调用该方法，将计算结果存储到总评成绩列中。具体实现方式如下所示：[^1]

class Course:
    def __init__(self, name, daily_score, mid_score, final_score):
        self.name = name
        self.daily_score = daily_score
        self.mid_score = mid_score
        self.final_score = final_score
        self.total_score = 0  # 初始化总评成绩为0

    def calc_total_score(self):
        self.total_score = self.daily_score * 0.4 + self.mid_score * 0.1 + self.final_score * 0.5


course = Course("math", 80, 90, 85) # 创建一个课程对象
course.calc_total_score()  # 计算总评成绩
print(course.total_score) # 输出总评成绩

如果要对一整列数据进行计算，可以使用循环遍历每个对象并调用计算总评成绩的方法。具体实现可以参考如下代码：

class Course:
    def __init__(self, name, daily_score, mid_score, final_score):
        self.name = name
        self.daily_score = daily_score
        self.mid_score = mid_score
        self.final_score = final_score
        self.total_score = 0

    def calc_total_score(self):
        self.total_score = self.daily_score * 0.4 + self.mid_score * 0.1 + self.final_score * 0.5


courses = [Course("math", 80, 90, 85), Course("english", 70, 85, 88), Course("history", 90, 95, 92)] # 创建多个课程对象
for course in courses:
    course.calc_total_score()  # 计算每个课程的总评成绩
    print(course.total_score)  # 输出每个课程的总评成绩