C# 隐式调用cmd窗口。执行cmd命令

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;   //进程  process  需要引用的
using System.Drawing;
using System.IO;   // 调用 StreamWriter 需要引入 
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        //public Form1()
        //{
        //    InitializeComponent();
        //}

        //private void button1_Click(object sender, EventArgs e)
        //{
        //    MessageBox.Show("第一个 C# 窗体用于 Windows 应用程序！");
        //}

        public Form1()
        {
            InitializeComponent();
            button1.Text = "查询";