如何将列表中的所有值加倍

# 原始列表
original_list = [1, 2, 3, 4, 5]

# 加倍后的列表
doubled_list = [x * 2 for x in original_list]

print(doubled_list)  # 输出: [2, 4, 6, 8, 10]

// 原始列表
let originalList = [1, 2, 3, 4, 5];

// 加倍后的列表
let doubledList = originalList.map(x => x * 2);

console.log(doubledList);  // 输出: [2, 4, 6, 8, 10]

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        // 原始列表
        List<Integer> originalList = new ArrayList<>();
        originalList.add(1);
        originalList.add(2);
        originalList.add(3);
        originalList.add(4);
        originalList.add(5);

        // 加倍后的列表
        List<Integer> doubledList = new ArrayList<>();
        for (int num : originalList) {
            doubledList.add(num * 2);
        }

        System.out.println(doubledList);  // 输出: [2, 4, 6, 8, 10]
    }
}

using System;
using System.Collections.Generic;

class Program {
    static void Main() {
        // 原始列表
        List<int> originalList = new List<int> { 1, 2, 3, 4, 5 };

        // 加倍后的列表
        List<int> doubledList = new List<int>();
        foreach (int num in originalList) {
            doubledList.Add(num * 2);
        }

        Console.WriteLine(string.Join(", ", doubledList));  // 输出: 2, 4, 6, 8, 10
    }
}