将元素添加到数组

let myArray = [2, 3, 4];
myArray.push(1);
console.log(myArray); // 输出 [2, 3, 4, 1]

myList = ["banana", "orange"]
myList.append("apple")
print(myList) # 输出 ["banana", "orange", "apple"]

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        ArrayList<String> myList = new ArrayList<>();
        myList.add("apple");
        myList.add("banana");
        myList.add("orange");
        myList.add("pear");
        System.out.println(myList); // 输出 [apple, banana, orange, pear]
    }
}

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List<int> myList = new List<int>() { 1, 2, 3, 4 };
        myList.Add(5);
        Console.WriteLine(string.Join(", ", myList)); // 输出 1, 2, 3, 4, 5
    }
}