python - 谁能帮我找出这段代码有什么问题吗？相同RNA序列匹配程序

Question

这是我到目前为止所得到的:提示用户输入两个序列时似乎存在错误。

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，你应该有这样的东西，而不是(input("输入RNA序列")==(sequence1，sequence2):

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

在这种情况下，您不需要函数有参数，只需执行 def matchSequences() 即可。

如果您想要使用参数，请删除包含输入的行，保留原始的def matchSequences(sequence1,sequence2)，而不是仅仅这样做:

matchSequences()

这样做:

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

或者这个:

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

(有关 * 在这里做什么的问题，请参阅 this 问题。此外，here 是 str.split 的文档。)