替换文件夹内多个fasta文件中的字符

import os
import re

def replace_chars_in_fasta_files(folder_path, old_chars, new_chars):
    # 遍历文件夹中的所有文件
    for file_name in os.listdir(folder_path):
        # 检查文件是否为FASTA文件（以.fasta或.fna结尾）
        if file_name.endswith('.fasta') or file_name.endswith('.fna'):
            file_path = os.path.join(folder_path, file_name)
            
            # 读取文件内容
            with open(file_path, 'r') as file:
                content = file.read()
            
            # 替换字符
            for old_char, new_char in zip(old_chars, new_chars):
                content = content.replace(old_char, new_char)
            
            # 将替换后的内容写回文件
            with open(file_path, 'w') as file:
                file.write(content)

# 使用示例
folder_path = 'path/to/your/fasta/files'
old_chars = ['A', 'T']
new_chars = ['T', 'A']

replace_chars_in_fasta_files(folder_path, old_chars, new_chars)