Traverse Directory and Find Matching File Paths

This function will traverse the given root directory and its subdirectories, and return all file paths that match the regular expression pattern.

Technology Stack : os, re

Code Type : Function

Code Difficulty :

                
                    
import os
import re

def find_files(root_path, pattern):
    """
    遍历给定根目录，返回匹配正则表达式的所有文件路径。

    :param root_path: str, 根目录路径
    :param pattern: str, 正则表达式模式
    :return: list, 匹配的文件路径列表
    """
    results = []
    for root, dirs, files in os.walk(root_path):
        for file in files:
            if re.match(pattern, file):
                results.append(os.path.join(root, file))
    return results