c#试验九4678合集

最新推荐文章于 2025-02-10 17:28:35 发布

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最新推荐文章于 2025-02-10 17:28:35 发布

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本文链接：https://blog.youkuaiyun.com/u012368971/article/details/40788201

本文介绍了一个使用C#编写的简单Windows窗体应用程序案例，包括随机数生成、列表框内容更新、字体大小调整及定时更新标签显示等功能。通过这个示例，读者可以了解如何在C#中操作窗体控件并实现基本的交互逻辑。

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            label1.Text = listBox1.Text;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            Random ra=new Random ();
            int[]s=new int[10];
            for(int i=0;i<10;i++){
                s[i]=ra.Next(10,99);
                listBox1.Items.Add(s[i].ToString());
            }
            //DateTime da = new DateTime();


        }

        private void hScrollBar1_Scroll(object sender, ScrollEventArgs e)
        {
            textBox1.Text = hScrollBar1.Value.ToString();
            label1.Font = new Font(label1.Font.Name, hScrollBar1.Value);
        }
        //int numi = 0;
        private void timer1_Tick(object sender, EventArgs e)
        {
            label2.Text = DateTime.UtcNow.ToString();
            //numi+=10;
           // pictureBox1.Left = numi;
            //if (numi > 249) { numi = 0; }//从左到右
            Random ra = new Random();
           pictureBox1.Left = ra.Next(0, 250);
           pictureBox1.Top = ra.Next(250);
           pictureBox2.Left = ra.Next(250);
           pictureBox2.Top = ra.Next(250);

        }