Finding Files with Specific Extension in a Directory and Subdirectories

This function is used to find all files with a specified extension in a given directory and all its subdirectories.

Technology Stack : os, re

Code Type : Function

Code Difficulty : Intermediate

                
                    
import os
import re

def find_files(directory, extension):
    """
    查找指定目录及其子目录下所有指定扩展名的文件。
    
    :param directory: 要搜索的目录
    :param extension: 文件扩展名
    :return: 找到的文件列表
    """
    files = []
    for root, dirs, filenames in os.walk(directory):
        for filename in filenames:
            if filename.endswith(extension):
                files.append(os.path.join(root, filename))
    return files