完整程序包已经上传至我的down http://download.csdn.net/detail/xuptacm/9835025
这里是界面设计
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 WindowsFormsApplication2 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } System.Diagnostics.Stopwatch sw; private void button2_Click(object sender, EventArgs e) { sw.Start(); timer1.Start(); } private void button1_Click(object sender, EventArgs e) { sw = new System.Diagnostics.Stopwatch(); sw.Start(); timer1.Start(); } private void timer1_Tick(object sender, EventArgs e) { TimeSpan ts = sw.Elapsed; label.Text = string.Format("{0}日:{1}时:{2}分:{3}秒:{4}毫秒", ts.Days, ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10); } private void button3_Click(object sender, EventArgs e) { string[] sMystring; OpenFileDialog ofdMyofd = new OpenFileDialog(); // ofdMyofd.FileName = "Please Select Picture"; ofdMyofd.Filter = "b.jpg|*.*"; if (ofdMyofd.ShowDialog() == DialogResult.OK) { sMystring = ofdMyofd.FileNames; this.BackgroundImage = Image.FromFile(sMystring[0]); } } private void label1_Click(object sender, EventArgs e) { } private void button4_Click(object sender, EventArgs e) { sw.Stop(); TimeSpan ts = sw.Elapsed; label.Text = string.Format("{0}日:{1}时:{2}分:{3}秒:{4}毫秒", ts.Days, ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10); } private void textBox1_TextChanged(object sender, EventArgs e) { } private void button5_Click(object sender, EventArgs e) { listBox1.Items.Add(label.Text); // this.listBox1.SelectedIndex = this.listBox1.Items.Count - 1; // this.listBox1.SelectedIndex = -1; } private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { } private void label1_Click_1(object sender, EventArgs e) { } private void button6_Click(object sender, EventArgs e) { label.Text = "00:00:00"; } } }