python - 谁能帮我弄清楚这段代码有什么问题？相同的RNA序列匹配程序

Question

到目前为止，这是我所拥有的：提示用户输入两个序列似乎有错误。

def matchSequences(sequence1, sequence2):

    numMatches = 0

    (input("Enter the RNA sequences")==(sequence1, sequence2)

    for i in range(0,len(sequence1))

        if sequence1[i] == A and i in sequence2[i] == U
            numMatches = numMatches+1
        if sequence1[i] == C and i in sequence2[i] == G
            numMatches = numMatches+1
        if sequence1[i] == G and i in sequence2[i] == C
            numMatches = numMatches+1
        if sequence1[i] == U and i in sequence2[i] == A
            numMatches = numMatches+1
        elif numMatches == numMatches+0:


            for i in range (sequence1, sequence2)
                if i in sequence1[i]:
                    numMatches == numMatches+1
                elif numMatches == numMatches+0:
                    return numMatches

matchSequences()

Answer 1

在我看来，而不是(input("Enter the RNA sequences")==(sequence1, sequence2)你应该有这样的东西：

sequence1, sequence2 = input("Enter the RNA sequences, seperated by a comma: ").split(",")

在这种情况下，你不需要函数有参数，你可以做def matchSequences().

如果要使用参数，请删除带有输入的行，保留原来def matchSequences(sequence1, sequence2)的，而不是仅仅这样做：

matchSequences()

做这个：

first_sequence = input("Enter the first sequence: ")
second_sequence = input("Enter the second sequence: ")
matchSequences(first_sequence, second_sequence)

或这个：

matchSequences(*input("Enter the RNA sequences, seperated by a comma: ").split(","))

（请参阅此问题以了解*此处的操作。此外，这里是文档str.split。）

Answer 2

您可以尝试以下方法：

sequences = tuple(seq for seq in raw_input().split("."))

其中一对序列被格式化：

AAAA.CCCC