带有 while 循环的成绩计算器

Question

我需要创建一个成绩计算器，将5个测试的结果放在一起并求平均值，并给出5个成绩的结果，我制作了最终的成绩结果程序，但我不知道如何进行循环仅运行五次并对每个输入结果求和。

grade = 0
total = 0
for grade in range(0,5):

 if grade >= 0 and grade <= 100:
  grade = grade + int(input('What was your score: '))

 elif grade >= 101: 

  grade += int(input('It should be a number from 0 to 100, what was your 
score: '))

if 93<=grade <= 100:
   print 'A'
elif 90 <= grade < 93:
  print 'A-'
elif 87 <= grade < 90:
  print 'B+'
elif 83 <= grade < 87:
  print 'B'
elif 80 <= grade < 83:
  print 'B-'
elif 77 <= grade < 80:
  print 'C+'
elif 73 <= grade < 77:
  print 'C'
elif 70 <= grade < 73:
  print 'C-'
elif 67 <= grade < 60:
  print 'D+'
elif 63 <= grade < 67:
  print 'D'
elif 60 <= grade < 63:
  print 'D-'
elif grade < 60:
  print 'F'

Answer 1

您没有正确从用户输入中收集成绩，因为您还向成绩添加了增量值 (0 - 5)，这会导致不正确的结果。

对于循环，您可以做的是维护正确输入的成绩数并运行它，直到达到限制（在您的情况下为 5）。

以下是对您的代码的可能修复：

total = 0
gradeCount = 0

while gradeCount < 5:
    grade = int(input('What was your score: '))

    if grade < 0 or grade > 100:
        print('It should be a number from 0 to 100')
    else:
        gradeCount += 1
        total += grade

        if 93 <= grade <= 100:
           print('A')
        elif 90 <= grade < 93:
            print('A-')
        elif 87 <= grade < 90:
            print('B+')
        elif 83 <= grade < 87:
            print('B')
        elif 80 <= grade < 83:
            print('B-')
        elif 77 <= grade < 80:
            print('C+')
        elif 73 <= grade < 77:
            print('C')
        elif 70 <= grade < 73:
            print('C-')
        elif 67 <= grade < 60:
            print('D+')
        elif 63 <= grade < 67:
            print('D')
        elif 60 <= grade < 63:
            print('D-')
        elif grade < 60:
            print('F')

average = total / gradeCount

print('Average: ' + str(average))

Answer 2

您正在向成绩添加增量值，这会给出不正确的结果

total = 0
gradeCount = 0

while gradeCount < 5:
if grade < 0 or grade > 100:
    print('It should be a number from 0 to 100')
else:
    gradeCount += 1
    total += grade

// Your calculation here
average = total / gradeCount
print('Average: ' + str(average))

如果您想了解如何设计成绩计算器，您还可以参考以下链接。 成绩计算器