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Python读取fasta格式数据成为字典形式。

def read_fasta(file_path):
    """
    读取FASTA格式文件，并返回一个包含序列ID和序列的字典。
    
    :param file_path: FASTA文件的路径
    :return: 一个字典，键为序列ID，值为相应的序列
    """
    sequences = {}
    sequence_id = None
    sequence_lines = []
    
    with open(file_path, 'r') as file:
        for line in file:
            line = line.strip()
            if line.startswith('>'):
                if sequence_id is not None:
                    sequences[sequence_id] = ''.join(sequence_lines)
                sequence_id = line[1:]  # 去掉 '>' 并获取序列ID
                sequence_lines = []
            else:
                sequence_lines.append(line)
        
        # Don't forget to add the last sequence after the loop
        if sequence_id is not None:
            sequences[sequence_id] = ''.join(sequence_lines)
    
    return sequences