如何读取文件夹中的所有文件

import os

folder_path = '/path/to/folder'

for filename in os.listdir(folder_path):
    file_path = os.path.join(folder_path, filename)
    if os.path.isfile(file_path):
        with open(file_path, 'r') as file:
            content = file.read()
            # 处理文件内容

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

String folderPath = "/path/to/folder";
try {
    Files.walk(Paths.get(folderPath))
         .filter(Files::isRegularFile)
         .forEach(filePath -> {
             try {
                 String content = Files.readString(filePath);
                 // 处理文件内容
             } catch (IOException e) {
                 e.printStackTrace();
             }
         });
} catch (IOException e) {
    e.printStackTrace();
}

using System;
using System.IO;

string folderPath = "/path/to/folder";
foreach (string filePath in Directory.GetFiles(folderPath))
{
    string content = File.ReadAllText(filePath);
    // 处理文件内容
}