Question

嗯，这是一个家庭作业项目，我有点难过。我试过做str / int转换。原来是行allScores.append ( int( strScore / 10 ) - 但我发现/ 10是多余的，因为我想追加值本身。我正在调试一个故意充满缺陷的程序，用于简单的等级计算。

MAX_SCORE = 10
MIN_SCORE = 0

def GetValidInput ( prompt ):
    strScore = input ( prompt ) # Added () to isdigit
    while ( not strScore.isdigit() and strScore != "done" ) or \
          ( strScore.isdigit() and \
          ( int(strScore) < MIN_SCORE or int(strScore) > MAX_SCORE ) ):     #Added int() as is it was comparing strings and numbers -- Changed AND     to OR
        if ( strScore.isdigit() ):
            print ( "Please enter a number between %0d and %0d." \
                    % ( MIN_SCORE, MAX_SCORE), end=' ' )
        else:
            print ( "Please enter only whole numbers.", end=' ' )
        strScore = input ( prompt )
    return strScore

allScores = [ ]
strScore = GetValidInput ( "Enter HW#" + str(len( allScores )) + "     score: " ) #Added str(), as is printing a string
while ( strScore != "done" ):
    strScore = GetValidInput ( "Enter HW#" + str(len( allScores )) + "     score: " ) # Fixed GetvalidInput to GetValidInput -- Added str() to     allScores to work in string -- Changed line place with the one below
    allScores.append ( int(strScore) ) # Fixed MAXSCORE to MAX_SCORE --     Added int() as it was comparing string strScore to an Integer --     Changed line place with the one above -- Removed 
    print(str(allScores))

出于某种原因，我一直得到 ValueError: invalid literal for int() with base 10: 'done' ，但我肯定需要将值附加到列表中，并获得平均值。有没有办法在不添加其他IF的情况下执行此操作？还在这里学习python和基本编程。

任何有用的建议？

Answer 1

暂时离开int()演员表。将所有内容作为字符串附加，然后，当您完成循环时，pop()最后一个元素（'done'）并将剩余的allScores转换为整数（使用{ {1}}，理解，等等。

map()

ValueError：基数为10的int（）的无效文字：'done'

1 个答案: