python学习——读取染色体长度（二、向前一步：通过染色体序列获得长度信息）

# 读取fasta

# 解析每条序列的长度

chr1_seq = 'ATATATATAT'

chr2_seq = 'ATATATATATCGCGCGCGCG'

chr3_seq = 'ATATATATATCGCGCGCGCGATATATATAT'

chr4_seq = 'ATATATATATCGCGCGCGCGATATATATATCGCGCGCGCG'

chr5_seq = 'ATATATATATCGCGCGCGCGATATATATATCGCGCGCGCGATATATATAT'

# 求和

total_len = len(chr1_seq) + len(chr2_seq) + len(chr3_seq) + len(chr4_seq) + len(chr5_seq)

# 输出结果

print(total_len)