Question

我正在尝试比较两个列表的内容-

一个列表包含文件名，即

filenamestring = ['a', 'b']

另一个列表包含多个单词及其得分，即

outlist = [('c', 46), ('d',
40), ('e', 37), ('f', 35),('a', 40),('b', 37),('c', 1), ('d',
2), ('e', 3), ('f', 4)]

我正在尝试从2个列表中找到匹配的单词，如果匹配正确，则将分数添加为200

尝试了下面的代码，但没有任何反应-

for letter, number in outlist:
    if word in filenamestring == letter in outlist:
        output[letter] = number + 200

    else:
        output[letter] += number

输出：

output =  [('c', 47), ('d',42), ('e', 40), ('f', 39),('a', 240),('b', 237)]

Answer 1

for letter, number in outlist:
if letter in filenamestring: # directly check if letter is in the filenamestring
    output[letter] = number + 200

else:
    output[letter] += number

Answer 2

工作代码：

    filenamestring = ["b", "a"]

    # The other list contains multiple words and their scores i.e

    outlist = [('c', 46), ('d', 40), ('e', 37), ('f', 35),('a', 40),('b', 37)]

    # I'm trying to find matching words from the 2 list and if matched correctly add the score with a value of 200

    # Tried the code below but nothing happened-
    i = 0
    for letter, number in outlist:

        print(letter + "= " + str(number))

        for word in filenamestring:
            if word  == letter :
                outlist[i] =(letter, number + 20000000)
                break
            else:
                outlist[i] = (letter, number)
        i= i+1

    print(outlist)

Answer 3

您可以使用列表推导：

 output = [(i[0], i[1]+200) if i[0] in filenamestring else (i[0],i[1]) for i in outlist]

从一个列表中查找元素并将其与另一列表中的元素进行比较

3 个答案: