检查目录是否存在,如果不存在则创建

import os

directory = "my_directory"

if not os.path.exists(directory):
    os.makedirs(directory)

import java.io.File;

public class CreateDirectory {
    public static void main(String[] args) {
        File directory = new File("my_directory");

        if (!directory.exists()) {
            directory.mkdir();
        }
    }
}

const fs = require("fs");

const directory = "my_directory";

if (!fs.existsSync(directory)) {
    fs.mkdirSync(directory);
}

using System.IO;

class Program {
    static void Main() {
        string directory = "my_directory";

        if (!Directory.Exists(directory)) {
            Directory.CreateDirectory(directory);
        }
    }
}

$directory = "my_directory";

if (!file_exists($directory)) {
    mkdir($directory);
}

directory = "my_directory"

if !Dir.exist?(directory)
    Dir.mkdir(directory)
end

package main

import (
    "os"
    "path/filepath"
)

func main() {
    directory := "my_directory"

    if _, err := os.Stat(directory); os.IsNotExist(err) {
        os.Mkdir(directory, os.ModePerm)
    }
}