1. 新建窗體 2. 屬性設定
3. 設定中文

注：設定完成後會生成一個配置檔案
4. 事件設定，雙擊如圖語言進行事件編輯

5. 程式碼實現

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;

using System.Threading;

namespace LanguageStitch
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("en-US");

            InitializeComponent();
        }

        private void englishToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("en-US");
            this.Controls.Clear();
            InitializeComponent();
        }

        private void chineseToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("zh-CN");
            this.Controls.Clear();
            InitializeComponent();
        }
    }
}