合并int数组C#的元素

Question

我已经在 MSDN 和 Stack overflow 上四处寻找了一段时间，但我似乎找不到任何东西，我想合并一个 int 数组的元素。我查看了 string.join 但似乎找不到 int 的等价物

int[] myArray = new int[] {1,4};
int myArray[0] + myArray[1] would equal 14, Note that i want to merge them together
not mathematically add them.

整个程序：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Exercise2
{

/** Create a reference type called Person.  Populate the Person class with the following properties to store the following information:
First name
Last name
Email address
Date of birth **/ 

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {

        string DOB = tbDOB.Text;
        DOB.Replace("\\"," ");
        int[] iDOB = DOB.Select(n => Convert.ToInt32(n)).ToArray();
        int day = 

    }


}

}

改成char数组会不会更好？

Answer 1

您可以使用string.Concat，然后将结果解析为整数：

int result = int.Parse(string.Concat(myArray));

字符串也是不可变的，您需要将DOB 赋值回去，并且您需要将非数字字符替换为string.Empty 而不是空白，否则您将得到@987654325 @。

DOB = DOB.Replace("\\", "");