有条件的不评估为真

Question

根据问题，如果成绩与下一个 5 的倍数之间的差异小于 3，则将成绩四舍五入到下一个 5 的倍数。如果等级值小于 38，则不会进行四舍五入，因为结果仍然是不及格等级。这是我的解决方案，def gradingStudents(grades):    for i in grades:        if (5 * round(1 + i/5) - i) < 3 and i>= 38:            print (5 * round(1 + i/5))        else:            print (i)grades_count = int(input().strip())grades = []for p in range(grades_count):    g = int(input(''))    grades.append(g)result = gradingStudents(grades)但是，在检查输出时我注意到 if 条件不起作用，因为输出生成与输入相同的等级。

Answer 1

使用模%5 应该可以帮助你。模是除法后得到的余数。示例8 % 5=3此外，//运算符在除法后会自动为您舍入

grades = [1, 9, 37, 38, 43, 47, 49, 99, 91]

rounded_grades = [grade if grade < 38 or grade % 5 in [0, 1, 2] else 5 * (grade // 5 + 1) for grade in grades]

print(grades)

print(rounded_grades)

#Output

[1, 9, 37, 38, 43, 47, 49, 99, 91]

[1, 9, 37, 40, 45, 47, 50, 100, 91]

Answer 2

我认为这样的事情应该有效

def gradingStudents(grades):

  output =[]

  for g in filter(lambda x: x>38, grades):

     step = g + (5 - g % 5)

     output.append(step < 3 : g + step ? g)

  output.extend(filter(lambda x: x<=38, grades)):

  return output

# ... Your other code

print(gradingStudents(grades))

Answer 3

简化您的方法

def finalGrade(grade, multiple_of=5, limit=38):

    if not grade < limit:

        grade = int(round(grade / multiple_of) * multiple_of)

    return grade

grades = [20, 34, 37, 38, 39, 41, 45, 48, 52]

finalGrades = [finalGrade(grade) for grade in grades]

# [20, 34, 37, 40, 40, 40, 45, 50, 50]