从完整文件名中提取文件名

import os

filename = 'example.txt'
full_path = '/path/to/file/' + filename
file_name_only = os.path.basename(full_path)
print(file_name_only)

import java.io.File;

public class Main {
    public static void main(String[] args) {
        String fullPath = "/path/to/file/example.txt";
        File file = new File(fullPath);
        String fileNameOnly = file.getName();
        System.out.println(fileNameOnly);
    }
}

const path = require('path');

const fullPath = '/path/to/file/example.txt';
const fileNameOnly = path.basename(fullPath);
console.log(fileNameOnly);

using System;
using System.IO;

class Program {
    static void Main() {
        string fullPath = "/path/to/file/example.txt";
        string fileNameOnly = Path.GetFileName(fullPath);
        Console.WriteLine(fileNameOnly);
    }
}