Python生物信息学④计算DNA核苷酸A、C、G、T出现次数

计算DNA核苷酸A、C、G、T出现次数 with open("rosalind_dna.txt") as f: fragment_of_dna = f.read() fragment_of_dna.rsplit() print(fragment_of_dna.count("A"), fragment_of_dna.count("C"), fragment_of_d

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