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_dna.count("G"),
fragment_of_dna.count("T"))