Question

我是编程新手，无法让我的主要功能正常工作。我的print语句给出了错误：

候选人未定义

但我的findBestCandidate功能不应该提供吗？我究竟做错了什么？？任何让我朝着正确方向前进的帮助都会很棒！

def fileToList(filename):
    import os.path
    if os.path.isfile(filename) == True:
        file = open(filename, "r")
        strings = file.read().splitlines()
        file.close()
        return strings
    if os.path.isfile(filename) == False:
        return []

def returnFirstString(strings):
    string = ''
    if len(strings) != 0:
        string = string + strings[0]
    return string

def strandsAreNotEmpty(strand1,strand2):
    if len(strand1) != 0 and len(strand2) != 0:
        return True
    return False

def strandsAreEqualLengths(strand1,strand2):
    if len(strand1) == len(strand2):
        return True
    return False

def findLargestOverlap(target,candidate):
    if len(target) != len(candidate):
        return -1
    if len(target) == 0 or len(candidate) == 0:
        return -1
    c = ''
    ol = 0
    for char in candidate:
        c += char
        if target[(len(target)-len(c)):] == c:
            ol = len(c)
    return ol

def findBestCandidate(target,candidates):
    overlap = 0
    candidate = ''
    for can in candidates:
        ol = findLargestOverlap(target, can)
        if ol > overlap:
            overlap = ol
            candidate = can
    return (candidate, overlap)

def joinTwoStrands(target,candidate,overlap):
    return target+candidate[overlap:]

def main():
    target = input('Enter target strand filename:')
    candidates = input('Enter candidate strands filename:')
    fileToList(target)
    fileToList(candidates)
    findBestCandidate(target,candidates)
    print(joinTwoStrands(target,candidate,overlap))

if __name__ == '__main__':

    main()

Answer 1

对于你的findBestCandidate函数，你应该像这样调用它，以相同的方式继续进行其他函数调用，即将结果存储在main中的变量

def main():
    ...
    candidate, overlap = findBestCandidate(target,candidates)
    ...

使用python将主要功能与所有内容捆绑在一起

1 个答案: