用Python实现以下内容：StuScore类实现记录学生的姓名及个各科成绩，该类有name和scoredict两个属性，其中scoredict是一个字典；方法__init__(self,name)，传入学生姓名，并将其初始化为空字典；方法addScore(self,courseName,score)，实现往scoredict添加课程名称及对应的成绩；方法getMaxScore(self)，返回该生最高成绩对应的课程名称及成绩；方法getAvg(self)返回该生的平均成绩。将该类实例，多次调用addScore()方法为该对象添加若干课程及分数，调用getMaxScore()和getAvg()方法，打印输出该对象的最高成绩和平均成绩。认真研读以下代码，填空实现程序功能。 （1） 实验代码 class StuScore(): def __init__(self,name): self.name = name self.scoredict = {} def addScore(self,courseName,score): def getMaxScore(self): ls = [] if self.scoredict: max_score = for course,score in self.scoredict.items(): if : ls.append((course,score)) return ls def getAvg(self): avg = 0 if self.scoredict: avg = sum(self.scoredict.values())/len(self.scoredict.values()) May =StuScore("May") May.addScore("Chinese",90) May.addScore("Math",80) May.addScore("English",90) May.addScore("Computer",80) print(May.getMaxScore()) print(May.getAvg())

填空代码：

class StuScore():
    def __init__(self,name):
        self.name = name
        self.scoredict = {}

    def addScore(self,courseName,score):
        self.scoredict[courseName] = score

    def getMaxScore(self):
        ls = []
        if self.scoredict:
            max_score = max(self.scoredict.values())
            for course,score in self.scoredict.items():
                if score == max_score:
                    ls.append((course,score))
        return ls

    def getAvg(self):
        avg = 0
        if self.scoredict:
            avg = sum(self.scoredict.values())/len(self.scoredict.values())
        return avg

May = StuScore("May")
May.addScore("Chinese",90)
May.addScore("Math",80)
May.addScore("English",90)
May.addScore("Computer",80)

print(May.getMaxScore())
print(May.getAvg())

输出结果为：

[('Chinese', 90), ('English', 90)]
85.0