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 对话框{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            colorDialog1.ShowDialog();  //显示颜色选择器            panel1.BackColor = colorDialog1.Color; //将选定颜色赋值给panel的背景色         }        private void button2_Click(object sender, EventArgs e)        {            folderBrowserDialog1.ShowDialog();    //显示文件夹选择器            label1.Text = folderBrowserDialog1.SelectedPath; //获取文件路径        }        private void button3_Click(object sender, EventArgs e)        {            fontDialog1.ShowDialog();            label2.Font = fontDialog1.Font;        }        private void button4_Click(object sender, EventArgs e)        {               //设置打开文件类型            openFileDialog1.Filter = "文本文件|*.txt|所有文件|*.*";                        //显示文件选择器            DialogResult dr = openFileDialog1.ShowDialog();                        //获取文件路径            if (dr == DialogResult.OK)     //判断用户是否选择了文件            {                label3.Text = openFileDialog1.FileName;            }        }        private void button5_Click(object sender, EventArgs e)        {            //显示文件选择器            DialogResult dr = saveFileDialog1.ShowDialog();                        //获取文件路径            if (dr == DialogResult.OK)     //判断用户是否选择了文件            {                label4.Text = saveFileDialog1.FileName;            }        }    }}