Question

我已经拆分了一个包含姓名和相应分数的列表，并将它们存储在名为students的词典中。但是有了这些分数，我被要求弄清楚平均分，最低分和最高分。我是初学者和学生，所以一步一步的解释将不胜感激。

def getStatistics(students):

#  Initialize properly the values of the average score, minimum score, and maximum score. 
    average = 0
    lowest = True
    highest = True
    scoreTotal = 0

上面的变量被标记为这种方式的原因是因为在我的main函数中调用了这个函数，它有一个带有这些名称的内置调用。但是每当我去运行程序时，它都不打印任何程序。

#  loop through the dictionary, and
#  calculate the average score, the highest score and the lowest score
#  of the students in the dictionary.

    i = 0
    for grade in students:
        scoreTotal += grade[i]
        i = i + 1
    average = scoreTotal/i
    lowest = min(grade[i])
    highest = max(grade[i])

#  The function must return back the average, highest and lowest score.
   return average, highest, lowest

在主要功能中它有这个:(“nameToMarksMap”是前一部分与词典学生的功能）

 average, highest, lowest = getStatistics(nameToMarksMap)

 print "Average:", average, "Highest:", highest, "Lowest:", lowest

什么都没有打印，有人可以解释原因吗？我一直都有错误。

Answer 1

用

完成功能

def getStatistics(students)
    ...
    # snip
    ...
    return average, highest, lowest

计算平均值并确定最低和最高值

1 个答案: