MyKTV项目总结

　　今天和大伙分享一下我的KTV系统，我想大家都有自己独特的魅力，都有自己的风采，都有自己骄傲的一部分。

在这里我就抛砖引玉，聊聊我的KTV项目，希望大家能给出自己的建议。。

首先，我们先了解一下：当我们拿到这个KTV系统时，我们该怎么办？该如何下手？我们应该有自己的一些想法。

我们先来看看我们必需要准备的数据库吧：

从上向下作用分别为：

1.用户登录

2.歌曲歌手图片路径

3.歌手信息

4.歌手类型信息

5.歌曲信息

6.歌曲类型信息

同时我们更应该把各个表之间的关系搞清楚

数据库关系图：

到这里我们的数据库就完成了

下面就开始我们一系列的开发代码阶段了

1.首先我们各种类已方便使用

01.用于连接数据库的类（SqlServer）

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyKTV
{
    //用于连接数据库
   public class SqlServer
    {
       public static string str = "data source=.;initial catalog=MyKTV;uid=sa";
    }
}

02.歌曲类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyKTV
{
    enum SongPlayState
    {
        //未播,在播,重播,切歌
        unplayed, played, again, cut
    }
   public class Song
    {
       public string gequ_name;//歌曲名
       public string geshou_name;//歌手名
       public string gequ_dizhi;//歌曲地址
       public string geshou_url;//歌手地址

       private SongPlayState playState = SongPlayState.unplayed;  // 歌曲播放状态,默认为未播

       // 歌曲播放状态
       internal SongPlayState PlayState
       {
           get { return playState; }
           set { playState = value; }
       }

       // 将歌曲状态改为已播放
       public void SetSongPlayed()
       {
           this.playState = SongPlayState.played;
       }

       // 将歌曲状态改为再拨放一次

       public void SetPlayAgain()
       {
           this.playState = SongPlayState.again;
       }

       // 将歌曲状态改为切歌

       public void SetSongCut()
       {
           this.playState = SongPlayState.cut;
       }
    }
}

03.用于操作歌曲的类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyKTV
{
   public class Playsong
    {
       public static Song[] gequ = new Song[];//定义一个对象数组
       public static int shuzuindex=;//定义数组下标原始为0

       //给对象数组赋值的方法
       public static bool Addsong(Song song){
           bool happy = false;
           for (int i = ; i < gequ.Length; i++)
           {
               if (gequ[i]==null)
               {
                   gequ[i] =song;
                   happy = true;
                   break;
               }

           }
           return happy;          

       }
       //获取当前播放的歌曲的方法
       public static Song GetPlayingSong()
       {

             if (shuzuindex<gequ.Length&&gequ[shuzuindex] != null)
               {
                   return gequ[shuzuindex];
               }
               else
               {
                   return null;
               }

       }

       #region 当前播放的歌曲名称
       //歌曲名称
       public static string PlayingSongName()
       {
           string songName = ""; // 歌曲名称
           if (shuzuindex < gequ.Length)
           {
               if (gequ[shuzuindex] != null)
               {
                   songName = gequ[shuzuindex].gequ_name;
               }
           }

           return songName;
       }

       #endregion

       #region 下一首要播放的歌曲名称
       //歌曲名称
       public static string NextSongName()
       {
           string songName = ""; // 歌曲名称
           if (shuzuindex +  < gequ.Length)
           {
               if (gequ[shuzuindex + ] != null)
               {
                   songName = gequ[shuzuindex + ].gequ_name;
               }

           }
           return songName;
       }

       #endregion

       #region 点播一首歌曲,新点播的歌曲
       //新点播的歌曲
       public static bool AddSong(Song song)
       {
           bool success = false;
           for (int i = ; i < gequ.Length; i++)
           {
               if (gequ[i] == null)
               {
                   gequ[i] = song;
                  // Console.WriteLine(song.gequ_name);
                   success = true;
                   break;
               }
           }

           return success;
       }

       #endregion

       #region 切歌
       //  切歌
       //要切歌曲的编号，如果是切当前播放的歌曲传入-1
       public static void CutSong(int index)
       {
           int i;  // 循环变量，代表切歌的位置
           if (index == -)
           {
               i = shuzuindex;
           }
           else
           {
               i = index; // 从切歌的位置开始，将歌曲逐个向前移一个位置
           }
           if (gequ[i] != null)
           {
               gequ[i].SetSongCut();
           }

           while (gequ[i] != null)
           {
               gequ[i] = gequ[i + ];
               i++;

               // 如果到达数组最后一个元素，就将最后一个元素指向空
               if (i == gequ.Length)
               {
                   gequ[i] = null;

               }
           }
           if (gequ[] != null)
           {
               gequ[].PlayState = SongPlayState.played;
           }
       }
       #endregion

       #region 重放当前歌曲
       // 重放当前歌曲
       public static void PlayAgain()
       {
           if (shuzuindex<gequ.Length)
           {
               if (gequ[shuzuindex] != null)
               {
                   gequ[shuzuindex].SetPlayAgain();
               }
           }

       }
       #endregion

       #region 播放下一首
       // 播放下一首
       public static void MoveOn()
       {
           if (shuzuindex < gequ.Length)
           {

               if (gequ[shuzuindex] != null && gequ[shuzuindex].PlayState == SongPlayState.again)//用于判断是不是重播
               {
                   gequ[shuzuindex].SetSongPlayed();
                   //gequ[shuzuindex].PlayState = SongPlayState.played;
               }
               else
               {
                  // gequ[shuzuindex].SetSongPlayed();
                  // shuzuindex++;

                   shuzuindex++;

               }

           }

       }
       #endregion

    }
}

04.用于或得歌曲和歌手图片路径

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyKTV
{
    public class KTVUtil
    {
        //保存歌曲路径,这样就可以多次使用
        public static string songurl;

        //保存歌手图片路径,这样就可以多次使用
        public static string singer_photo;

    }
}

05.同时，我们还需要一个工具类，以方便使用（这里先展示一下）

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MyKTV
{
   public class Tool
    {
       public static string num1;//获得是(组合,男,女)的类行

       public static string num2;//获得歌手的地区

       public static string num3;//或得歌手的名字

       public static string num4;//找到歌曲的路径(地址)

       public static FormMain frM;//主窗体,播放器的共用

       public static int num5;//获得是(流行,儿歌..)的类行

       public static Form_liebiao frm;//调用Form_liebiao中的把歌添加到数组的方法

       public static int num6;//用于字数点歌

       public static bool num7=false;//用于区分的标识符

       public static int ph;//用于金曲排行

       public static Form_Yidian yidian;

    }
}

这样后，我们就可以开始我们的开发之路了

1.前台

1.欢迎界面

代码如下：

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 MyKTV
{
    public partial class Form_Wlcome : Form
    {
        public Form_Wlcome()
        {
            InitializeComponent();
        }

        private void pictureBox1_Click(object sender, EventArgs e)
        {
           //单击进入主界面
               FormMain fm = new FormMain();
               fm.Show();
               this.Hide();//隐藏欢迎界面
        }

    }
}

2.主页面

这里我们就来说一说KTV项目的功能，上面的图一目了然

我们就上图所看到的一系列控件进行一一展示

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.Data.SqlClient;
namespace MyKTV
{
    public partial class FormMain : Form
    {
        public FormMain()
        {
            InitializeComponent();
        }
        //歌曲名称
        public Song songname;

        private void FormMain_Load(object sender, EventArgs e)
        {

            Form_liebiao frm = new Form_liebiao();//走一遍Form_liebiao窗体
            Tool.frm = frm;//这样就可以把Form_liebiao窗体赋给Tool类里的frm,这样就可以在其它窗体里用Form_liebiao窗体里的方法,..(eg:在fenleidiange窗体里用Form_            liebiao窗体中Add方法用于添加到已点列表)
            Tool.frM = this;//把主窗体赋值给Tool类里面的frM,这样就可以用主窗体的播放器空间

            string sql="select resource_path from dbo.Resource_Path where resource_id=1";
            KTVUtil.singer_photo= get( sql) ;//歌手地址
            string sql1 = "select resource_path from dbo.Resource_Path where resource_id=2";
            KTVUtil.songurl=  get(sql1);//歌曲地址
           // mp.URL = Tool.num4;
        }

        //用于获得 歌曲 或 歌手的地址(路径)
        public string get(string sql)
        {
            SqlConnection con = new SqlConnection(SqlServer.str);
            SqlCommand cmd = new SqlCommand(sql,con);
            string url="";
            try
            {
                con.Open();
               SqlDataReader dr= cmd.ExecuteReader();
                if(dr.HasRows)
                {
                    while (dr.Read())
                    {
                        url = dr["resource_path"].ToString();
                    }
                }
            }
            catch (Exception)
            {

                MessageBox.Show("网络出错哟!");
            }
            finally
            {

                con.Close();
            }
            return url;
        }
        //退出按钮
        private void but_tui_Click(object sender, EventArgs e)
        {
            //提示
            DialogResult result = MessageBox.Show("确定退出吗?","提示",MessageBoxButtons.OKCancel,MessageBoxIcon.Question);
            if (result==DialogResult.OK)
            {
                Application.Exit();
            }
            else
            {
                //。。。
            }

        }

        //歌星点歌按钮
        private void but_one_Click(object sender, EventArgs e)
        {
            Form_GeXing fg = new Form_GeXing();
            Tool.num7 = false;
            this.Hide();
            fg.Show();
        }
//显示播放歌曲,和下一首歌曲
        public void showsongname()
        {

          txt_now.Text=  Playsong.PlayingSongName();
          txt_next.Text = Playsong.NextSongName();

        }
 //播放歌曲的方法
        public void playedsong()
        {
            //获取当前播放的歌曲
            songname = Playsong.GetPlayingSong();
            //如果当前歌曲不为空的话
           if(songname!=null)
           {
           //把播放歌曲状态改为已播放
               songname.PlayState = SongPlayState.played;

               mp.URL = KTVUtil.songurl + songname.gequ_dizhi;
               //显示歌手图片
               string photoPath = KTVUtil.singer_photo + songname.geshou_url;
               this.picb.Image = Image.FromFile(photoPath);
           }

        }
//应用timer控件实现对歌曲播放的状态进行一系列的操作
        private void time_Tick(object sender, EventArgs e)
        {
            showsongname();//主页面展示 当前播放 , 下一首播放 内容

            //顺序播放
            if (this.songname==null)//未找到歌在播放
            {
                playedsong();//获取一首歌
            }
            if (this.mp.playState == WMPLib.WMPPlayState.wmppsStopped)//一首歌快播完了
            {

                this.songname = null;//把歌曲名称改为null

                Playsong.MoveOn();//再重新获取下一首歌曲
               // songname.PlayState = SongPlayState.played;
            }
            //切歌
            if (this.songname != null && this.songname.PlayState == SongPlayState.cut)
            {
                this.mp.URL = "";//把播放地址设为null,则停止了播放
                this.songname = null;//把歌曲也设为了null

            }
            //重播
            if (this.songname != null && this.songname.PlayState == SongPlayState.again)
            {
                playedsong();//重新

            }

        }
 //切歌
        private void but_qie_Click(object sender, EventArgs e)
        {
            if (txt_now.Text=="")
            {
                MessageBox.Show("您未添加歌曲,没发切歌哟!亲", "提示", MessageBoxButtons.OKCancel,MessageBoxIcon.Information);
            }
            else if (txt_now.Text != "" && txt_next.Text!="")
            {
                DialogResult result = MessageBox.Show("确定切歌", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    Playsong.CutSong(-);
                }
            }
            else
            {
                MessageBox.Show("现在播放的是最后一首歌,已经没歌可切喽!再去添加吧!", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }

        }

//重播
        private void but_chong_Click(object sender, EventArgs e)
        {
            Playsong.PlayAgain();
        }

        private void but_five_Click(object sender, EventArgs e)
        {
            zishudiange zs = new zishudiange();
            this.Hide();
            zs.Show();
        }

        private void but_two_Click(object sender, EventArgs e)
        {
            pinyindiange py = new pinyindiange();
            Tool.num7 = false;
            this.Hide();
            py.Show();

        }

        private void but_three_Click_1(object sender, EventArgs e)
        {
            fenleidiange fl = new fenleidiange();
            Tool.num7 = false;
            fl.Show();
        }

        private void but_four_Click(object sender, EventArgs e)
        {
            Tool.ph = ;
            Form_liebiao frm = new Form_liebiao();
            Tool.num7 = false;
            frm.Show();
            Tool.ph = ;
        }

        private void but_dian_Click(object sender, EventArgs e)
        {

            Form_Yidian yi = new Form_Yidian();
            yi.Show();
        }

        private void but_ke_Click(object sender, EventArgs e)
        {
            MessageBox.Show("已向客服中心联系!","提示",MessageBoxButtons.OKCancel,MessageBoxIcon.Information);
        }
 //播放器的隐藏与显示
        private void lab_yin_Click(object sender, EventArgs e)
        {
            if (lab_yin.Text=="隐藏播放器")
            {
                this.Height = this.Height - ;
                lab_yin.Text = "显示播放器";
            }
            else
            {
                this.Height = this.Height + ;
                lab_yin.Text = "隐藏播放器";
            }
        }
//实现窗体的拖动
        #region 窗体的拖动
        //一下是窗体的拖动
        private Point mouseOffset;        //记录鼠标指针的坐标
        private bool isMouseDown = false; //记录鼠标按键是否按下   

        private void panel_top_MouseUp(object sender, MouseEventArgs e)
        {
            // 修改鼠标状态isMouseDown的值
            // 确保只有鼠标左键按下并移动时，才移动窗体
            if (e.Button == MouseButtons.Left)
            {
                isMouseDown = false;
            }

        }

        private void panel_top_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown)
            {
                Point mousePos = Control.MousePosition;
                mousePos.Offset(mouseOffset.X + , mouseOffset.Y + );
                Location = mousePos;
            }

        }

        private void panel_top_MouseDown(object sender, MouseEventArgs e)
        {
            int xOffset;
            int yOffset;
            if (e.Button == MouseButtons.Left)
            {
                xOffset = -e.X - SystemInformation.FrameBorderSize.Width;
                yOffset = -e.Y - SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;
                mouseOffset = new Point(xOffset, yOffset);
                isMouseDown = true;
            }

        }

        private void FormMain_MouseUp(object sender, MouseEventArgs e)
        {
            // 修改鼠标状态isMouseDown的值
            // 确保只有鼠标左键按下并移动时，才移动窗体
            if (e.Button == MouseButtons.Left)
            {
                isMouseDown = false;
            }
        }

        private void FormMain_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown)
            {
                Point mousePos = Control.MousePosition;
                mousePos.Offset(mouseOffset.X + , mouseOffset.Y + );
                Location = mousePos;
            }
        }

        private void FormMain_MouseDown(object sender, MouseEventArgs e)
        {
            int xOffset;
            int yOffset;
            if (e.Button == MouseButtons.Left)
            {
                xOffset = -e.X - SystemInformation.FrameBorderSize.Width;
                yOffset = -e.Y - SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;
                mouseOffset = new Point(xOffset, yOffset);
                isMouseDown = true;
            }
        }
        #endregion

    }
}

歌星点歌(主要是listview控件的使用)

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.Data.SqlClient;
namespace MyKTV
{
    public partial class Form_GeXing : Form
    {
        public Form_GeXing()
        {
            InitializeComponent();
        }

        private void panel_foot_Paint(object sender, PaintEventArgs e)
        {

        }

        //从数据库加载歌曲类型的方法
        public void gequleixinf() {

            string str = SqlServer.str;
            string sql = "select singertype_name from singer_type ";
            SqlConnection con = new SqlConnection(str);
            SqlCommand com = new SqlCommand(sql, con);
            try
            {
                lv_two.Items.Clear();//清除以前listview数据
               // imglist_two.Images.Clear();//清除以前图片数据
                con.Open();
                SqlDataReader dr = com.ExecuteReader();
                int index = ;

                if (dr != null)
                {
                    if (dr.HasRows)
                    {
                        while (dr.Read())
                        {
                            string name = dr["singertype_name"].ToString();

                            ListViewItem item = new ListViewItem();
                            item.Text = name;
                            item.ImageIndex = index;
                            lv_two.Items.Add(item);//关联
                            index++;
                        }

                    }

                }

            }
            catch (Exception)
            {

                MessageBox.Show("网络出错哦!");
            }
            finally
            {
                con.Close();
            }

        }

        //动态加载歌手信息方法
        public void dongtaijiazai()
        {
            string str = SqlServer.str;
            string sql = "select resource_path,singer_phone_url,singer_name from Resource_Path,singer_info,singer_type where singer_info.singertype_id=singer_type.singertype_id and resource_type='singer_photo' and singer_sex='" + Tool.num1 + "' and singertype_name='" + Tool.num2 + "' ";
            SqlConnection con = new SqlConnection(str);
            SqlCommand com = new SqlCommand(sql, con);
            try
            {
                con.Open();
                SqlDataReader dr = com.ExecuteReader();
                int imgindex = ;//图片下标
                 lv_three.Items.Clear();//清除以前listview数据
                 imglist_three.Images.Clear();//清除以前图片数据
                if (dr != null)
                {
                    if (dr.HasRows)
                    {
                        while (dr.Read())
                        {
                            string path = dr["resource_path"].ToString();

                            string singer_phone_url = dr["singer_phone_url"].ToString();
                            string singer_name = dr["singer_name"].ToString();

                            string zong = path + singer_phone_url;//拼接歌手图片地址
                            imglist_three.Images.Add(Image.FromFile(zong));//显示图片

                            // imglist_three.ImageSize = Image.FromFile(zong).Size;
                            //"" + singer_name + "", imgindex

                            //ListViewItem绑定值
                            ListViewItem item = new ListViewItem();
                            item.Text = "" + singer_name + "";
                            item.ImageIndex =imgindex;
                            lv_three.Items.Add(item);
                            imgindex++;//增加图片下标
                        }

                    }

                }

            }
            catch (Exception)
            {

                MessageBox.Show("网络出错哦!");
            }
            finally
            {
                con.Close();
            }
        }

        //返回按钮
        private void but_fan_Click(object sender, EventArgs e)
        {
            if (this.lv_two.Visible==true)
            {
                lv_one.Visible = true;
                lv_two.Visible = false;
            }
            else if (this.lv_one.Visible==true)
            {

                this.Hide();
                Tool.frM.Show();
            }
            else if (this.lv_three.Visible==true)
            {
                lv_three.Visible = false;
                lv_two.Visible = true;
            }
        }
        //主页面
        private void but_home_Click(object sender, EventArgs e)
        {

            this.Close();
            Tool.frM.Show();
        }

        private void lv_one_Click(object sender, EventArgs e)
        {
            Tool.num1 = lv_one.SelectedItems[].Text;//获取选择值
            if (Tool.num1 != "组合")
            {
                Tool.num1 = Tool.num1 == "女歌手" ? "女" : "男";
            }

            lv_one.Visible = false;//隐藏第一个listview

            lv_two.View = View.LargeIcon;//设定显示listview显示方式

            lv_two.LargeImageList = imglist_two;//设定显示listview显示图片的方式

            gequleixinf();//从数据库加载歌曲类型

            lv_two.Visible = true;//让第二个listview显示

            lv_two.Location = lv_one.Location;//让显示的listview显示的位置和隐藏的listview相同

            lv_two.Size = lv_one.Size;//让显示的listview大小与隐藏的相同
        }

        private void lv_two_Click(object sender, EventArgs e)
        {
            Tool.num2 = lv_two.SelectedItems[].Text;//获取选择值
            //MessageBox.Show(Tool.num2);
            dongtaijiazai();//加载歌手信息
            lv_two.Visible = false;
            lv_three.Visible = true;
            lv_three.Location = lv_two.Location;
            lv_three.Size = lv_two.Size;
        }

        private void lv_three_Click(object sender, EventArgs e)
        {
            Tool.num3 = lv_three.SelectedItems[].Text;
            // MessageBox.Show(Tool.num3);
            Form_liebiao lb = new Form_liebiao();
            Tool.num7 = false;
            this.Hide();
            lb.Show();

        }

        //已点列表
        private void but_yi_Click(object sender, EventArgs e)
        {
            Form_Yidian fy = new Form_Yidian();

            fy.Show();
        }
        //切歌
        private void but_qie_Click(object sender, EventArgs e)
        {
            if (Tool.frM.txt_now.Text == "")
            {
                MessageBox.Show("您未添加歌曲,没发切歌哟!亲", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }
            else if (Tool.frM.txt_now.Text != "" && Tool.frM.txt_next.Text != "")
            {
                DialogResult result = MessageBox.Show("确定切歌", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    Playsong.CutSong(-);
                }
            }
            else
            {
                MessageBox.Show("现在播放的是最后一首歌,已经没歌可切喽!再去添加吧!", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }
        }
        //重唱
        private void but_again_Click(object sender, EventArgs e)
        {
            Playsong.PlayAgain();
        }

        private void Form_GeXing_Load(object sender, EventArgs e)
        {

        }

        #region 窗体的拖动
        //一下是窗体的拖动
        private Point mouseOffset;        //记录鼠标指针的坐标
        private bool isMouseDown = false; //记录鼠标按键是否按下   

        private void panel_top_MouseUp(object sender, MouseEventArgs e)
        {
            // 修改鼠标状态isMouseDown的值
            // 确保只有鼠标左键按下并移动时，才移动窗体
            if (e.Button == MouseButtons.Left)
            {
                isMouseDown = false;
            }

        }

        private void panel_top_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown)
            {
                Point mousePos = Control.MousePosition;
                mousePos.Offset(mouseOffset.X + , mouseOffset.Y + );
                Location = mousePos;
            }

        }

        private void panel_top_MouseDown(object sender, MouseEventArgs e)
        {
            int xOffset;
            int yOffset;
            if (e.Button == MouseButtons.Left)
            {
                xOffset = -e.X - SystemInformation.FrameBorderSize.Width;
                yOffset = -e.Y - SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;
                mouseOffset = new Point(xOffset, yOffset);
                isMouseDown = true;
            }

        }

        #endregion

    }
}

歌曲列表

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.Data.SqlClient;
namespace MyKTV
{
    public partial class Form_liebiao : Form
    {
        public Form_liebiao()
        {
            InitializeComponent();
        }
        public string  song_url;//歌曲名字

        public string singer_url;//歌手图片名字

        //显示列表的方法
        public void liebiao(string sql) {

            lv_liebiao.Items.Clear();
            string str = SqlServer.str;
            SqlConnection con = new SqlConnection(str);
            SqlCommand com = new SqlCommand(sql, con);
            try
            {
                con.Open();
                SqlDataReader dr = com.ExecuteReader();
                if (dr != null)
                {
                    if (dr.HasRows)
                    {
                        while (dr.Read())
                        {
                            string song_name = dr["song_name"].ToString();
                            string singer_name = dr["singer_name"].ToString();

                            ListViewItem item = new ListViewItem("" + song_name + "");
                            item.SubItems.Add("" + singer_name + "");

                            lv_liebiao.Items.Add(item);
                        }
                    }
                }
            }
            catch (Exception)
            {

                MessageBox.Show("网络异常哟!");
            }
            finally
            {

                con.Close();

            }

        }
        //获得歌手的歌曲列表
        private void Form_liebiao_Load(object sender, EventArgs e)
        {

            if (Tool.num6!=  && Tool.num7==true)//字数点歌
            {
                string sql = @"select song_name,singer_name from song_info,singer_info
                                where song_info.singer_id=singer_info.singer_id
                                and song_word_count=" + Tool.num6 + "";
                liebiao(sql);
            }

            else if (Tool.num5 != )//分类点歌
            {
                string sql= @"select song_name,singer_name from song_info,singer_info
                                where song_info.singer_id=singer_info.singer_id
                                and songtype_id=" + Tool.num5 + "";
               liebiao(sql);
            }
            else if(Tool.ph==)//点击排行榜
            {
                string sql = @"select song_name,singer_name from song_info,singer_info
                                where song_info.singer_id=singer_info.singer_id
                                 order by song_play_count desc ";
                liebiao(sql);
            }
            else if (Tool.num3!=null&&Tool.num7==false) //歌星(歌手)点歌
            {
                string sql = "select song_name,singer_name from singer_info,song_info where singer_info.singer_id=song_info.singer_id and singer_name='" + Tool.num3 + "' ";
                liebiao(sql);
            }

        }

        //在歌单列表中点击添加到已点列表的方法
        public  void  Add(string s,string s1) {

            string str = SqlServer.str;
            string sql = "select song_name,song_url,singer_name,singer_phone_url,resource_path from song_info,singer_info,Resource_Path where singer_info.singer_id=song_info.singer_id and resource_type='song' and song_name='" + s + "' and singer_name='" + s1 + "'";
            SqlConnection con = new SqlConnection(str);
            SqlCommand com = new SqlCommand(sql, con);
            try
            {

                con.Open();
                SqlDataReader dr = com.ExecuteReader();
                if (dr != null)
                {
                    if (dr.HasRows)
                    {

                        while (dr.Read())
                        {
                            //string resource_path = dr["resource_path"].ToString();//歌曲路径
                            song_url = dr["song_url"].ToString();//歌曲名字  .mp3
                            singer_url = dr["singer_phone_url"].ToString();//歌手名字
                            //Tool.num4 = resource_path + song_url;//找到歌曲
                            //if (thing=="")
                            //{
                            //    Tool.frM.mp.URL = Tool.num4;
                            //    thing = Tool.num4;
                            //}

                        }
                    }

                }
                //用于把歌曲信息放在数组
                Song song = new Song();
                song.gequ_name = s;
                song.geshou_name = s1;
                song.gequ_dizhi = song_url;
                song.geshou_url = singer_url;
                //song.gequ_dizhi = Tool.num4;

                if (Playsong.Addsong(song)) //把歌曲信息添加到对象数组
                {
                    MessageBox.Show("添加成功!");
                    //用于排行榜
                    string sql1 = "select singer_id,song_id from song_info where song_name='" + s + "'";
                    SqlConnection con1 = new SqlConnection(SqlServer.str);
                    SqlCommand cmd = new SqlCommand(sql1, con1);
                    con1.Open();
                    SqlDataReader dr1 = cmd.ExecuteReader();
                    int singer_id = ;
                    int song_id = ;

                    if (dr1.HasRows)
                    {
                        while (dr1.Read())
                        {
                            singer_id = Convert.ToInt32(dr1["singer_id"].ToString());
                            song_id = Convert.ToInt32(dr1["song_id"].ToString());
                        }
                    }
                    dr1.Close();
                    con1.Close();
                    string sql2 = "update song_info set song_play_count=song_play_count+1 where singer_id=" + singer_id + "  and song_id=" + song_id + "";
                    SqlConnection con2 = new SqlConnection(SqlServer.str);
                    SqlCommand cmd2 = new SqlCommand(sql2, con2);
                    con2.Open();
                    cmd2.ExecuteNonQuery();
                    con2.Close();

                }
                else
                {
                    MessageBox.Show("添加失败!");
                }

            }
            catch (Exception)
            {

                MessageBox.Show("网络出错!");
            }
            finally
            {
                con.Close();

            }

        }
       //在歌曲列表中用于点击歌曲进行播放
        private void lv_liebiao_Click(object sender, EventArgs e)
        {
            if (lv_liebiao.SelectedItems.Count > )
            {
                string s = lv_liebiao.SelectedItems[].SubItems[].Text;//歌曲名
                string s1 = lv_liebiao.SelectedItems[].SubItems[].Text;//歌手名
                Add(s, s1);//点击添加到已点列表
            }

        }
        //返回主页面
        private void but_home_Click(object sender, EventArgs e)
        {
            this.Close();
            Tool.frM.Show();
        }

        private void lv_liebiao_SelectedIndexChanged(object sender, EventArgs e)
        {

        }
        //查看已点列表
        private void but_yi_Click(object sender, EventArgs e)
        {
            Form_Yidian fy = new Form_Yidian();
            this.Close();
            fy.Show();
        }

        private void but_qie_Click(object sender, EventArgs e)
        {
            if (Tool.frM.txt_now.Text == "")
            {
                MessageBox.Show("您未添加歌曲,没发切歌哟!亲", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }
            else if (Tool.frM.txt_now.Text != "" && Tool.frM.txt_next.Text != "")
            {
                DialogResult result = MessageBox.Show("确定切歌", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    Playsong.CutSong(-);
                }
            }
            else
            {
                MessageBox.Show("现在播放的是最后一首歌,已经没歌可切喽!再去添加吧!", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }
        }

        private void but_again_Click(object sender, EventArgs e)
        {
            Playsong.PlayAgain();
        }

        private void but_fan_Click(object sender, EventArgs e)
        {
            this.Close();
            Tool.frM.Show();

        }

        #region 窗体拖动
        private Point mouseOffset;        //记录鼠标指针的坐标
        private bool isMouseDown = false; //记录鼠标按键是否按下   

        private void panel_top_MouseUp(object sender, MouseEventArgs e)
        {
            // 修改鼠标状态isMouseDown的值
            // 确保只有鼠标左键按下并移动时，才移动窗体
            if (e.Button == MouseButtons.Left)
            {
                isMouseDown = false;
            }

        }

        private void panel_top_MouseMove(object sender, MouseEventArgs e)
        {
            if (isMouseDown)
            {
                Point mousePos = Control.MousePosition;
                mousePos.Offset(mouseOffset.X + , mouseOffset.Y + );
                Location = mousePos;
            }

        }

        private void panel_top_MouseDown(object sender, MouseEventArgs e)
        {
            int xOffset;
            int yOffset;
            if (e.Button == MouseButtons.Left)
            {
                xOffset = -e.X - SystemInformation.FrameBorderSize.Width;
                yOffset = -e.Y - SystemInformation.CaptionHeight - SystemInformation.FrameBorderSize.Height;
                mouseOffset = new Point(xOffset, yOffset);
                isMouseDown = true;
            }

        }

        #endregion

        private void panel_top_Paint(object sender, PaintEventArgs e)
        {

        }

    }
}

已点列表

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.Data.SqlClient;
namespace MyKTV
{
    public partial class Form_Yidian : Form
    {
        public Form_Yidian()
        {
            InitializeComponent();
        }

       //显示已点列表
        private void Form_Yidian_Load(object sender, EventArgs e)
        {
            yidiangequ();

        }
        //已点列表
        private void yidiangequ()
        {
            lv_yidian.Items.Clear();
           // int num = 0;
            foreach (Song item in Playsong.gequ)
            {
                if (item != null)
                {
                    //给listview绑定值
                    ListViewItem tem = new ListViewItem(item.gequ_name);
                    tem.SubItems.Add(item.geshou_name);
                    string hao =item.PlayState==SongPlayState.unplayed ? "未播" : "已播";

                    tem.SubItems.Add(hao);
                    lv_yidian.Items.Add(tem);
                   // num++;
                }

            }

        }

        #region 已点列表可以播放的方法(未用)
         // string s = lv_yidian.SelectedItems[0].SubItems[0].Text;//歌曲名
           // string s1 = lv_yidian.SelectedItems[0].SubItems[1].Text;//歌手名
           // string s2 = lv_yidian.SelectedItems[0].SubItems[2].Text;
           ////改变歌曲状态
           // if (s2 == "在播")
           // {

           //     lv_yidian.SelectedItems[0].SubItems[2].Text = "已播";
           // }
           // else
           // {
           //     lv_yidian.SelectedItems[0].SubItems[2].Text = "已播";
           // }
           // string str = SqlServer.str;
           // string sql = "select song_name,song_url,singer_name,singer_phone_url,resource_path from song_info,singer_info,Resource_Path where singer_info.singer_id=song_info.singer_id and resource_type='song' and song_name='" + s + "' and singer_name='" + s1 + "'";
           // SqlConnection con = new SqlConnection(str);
           // SqlCommand com = new SqlCommand(sql, con);
           // try
           // {
           //     con.Open();
           //     SqlDataReader dr = com.ExecuteReader();
           //     if (dr != null)
           //     {
           //         if (dr.HasRows)
           //         {
           //             while (dr.Read())
           //             {
           //                 string resource_path = dr["resource_path"].ToString();//歌曲路径
           //                 string song_url = dr["song_url"].ToString();//歌曲名字

           //                 Tool.num4 = resource_path + song_url;//找到歌曲

           //                 Tool.frM.mp.URL = Tool.num4;

           //             }
           //         }

           //     }          

           // }
           // catch (Exception)
           // {

           //     MessageBox.Show("网络出错!");
           // }
           // finally
           // {
           //     con.Close();

           // }
        #endregion

        //已点的单击事件,想在已点列表里进行点歌(未用)
        private void lv_yidian_Click(object sender, EventArgs e)
        {

        }
        //点击切歌触发的事件
        private void but_qie_Click(object sender, EventArgs e)
        {
            if (Tool.frM.txt_now.Text == "")
            {
                MessageBox.Show("您未添加歌曲,没发切歌哟!亲", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }
            else if (Tool.frM.txt_now.Text != "" && Tool.frM.txt_next.Text != "")
            {
                DialogResult result = MessageBox.Show("确定切歌", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    Playsong.CutSong(-);
                    yidiangequ();//重新再加载了已点列表

                }
            }
            else
            {
                MessageBox.Show("现在播放的是最后一首歌,已经没歌可切喽!再去添加吧!", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }

        }

        //重唱
        private void but_again_Click(object sender, EventArgs e)
        {
            Playsong.PlayAgain();

        }
       //返回
        private void but_fan_Click(object sender, EventArgs e)
        {
            this.Close();
            Tool.frM.Show();
        }
        //主页
        private void but_home_Click(object sender, EventArgs e)
        {
            this.Close();
            Tool.frM.Show();
        }

        private void but_qing_Click(object sender, EventArgs e)
        {
                      yidiangequ();

         }

        }

    }

拼音点歌

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.Data.SqlClient;
namespace MyKTV
{
    public partial class pinyindiange : Form
    {
        public pinyindiange()
        {
            InitializeComponent();
        }

        //加载有的歌曲方法
        public void jiazai() {
            lv_liebiao.Items.Clear();
            string sql = @"select song_name,singer_name from song_info,singer_info where song_info.singer_id=dbo.singer_info.singer_id and song_name like'%" + txt_name.Text + "%' or song_ab like '%" + txt_name.Text + "%' and song_info.singer_id=dbo.singer_info.singer_id";
            string str = SqlServer.str;
            SqlConnection con = new SqlConnection(str);
            SqlCommand com = new SqlCommand(sql, con);
            try
            {
                con.Open();
                SqlDataReader dr = com.ExecuteReader();
                if (dr != null)
                {
                    if (dr.HasRows)
                    {
                        while (dr.Read())
                        {

                            string song_name = dr["song_name"].ToString();
                            string singer_name = dr["singer_name"].ToString();

                            ListViewItem item = new ListViewItem("" + song_name + "");
                            item.SubItems.Add("" + singer_name + "");

                            lv_liebiao.Items.Add(item);
                        }
                    }
                }
            }
            catch (Exception)
            {

                MessageBox.Show("网络异常哟!");
            }
            finally
            {

                con.Close();
            }

        }
        private void but_select_Click(object sender, EventArgs e)
        {

            jiazai();//点击可用模糊查询

        }

        //点击列表中的歌曲, 播放或添加
        private void lv_liebiao_Click(object sender, EventArgs e)
        {
            if (lv_liebiao.SelectedItems.Count > )//确定有选中项,要不下面选中时会报错
            {
                string s = lv_liebiao.SelectedItems[].SubItems[].Text;//歌曲名
                string s1 = lv_liebiao.SelectedItems[].SubItems[].Text;//歌手名
                Tool.frm.Add(s, s1);//调用前面Form_liebiao中的方法
            }

        }

        private void pinyindiange_Load(object sender, EventArgs e)
        {
            txt_name.Focus();//锁定输入焦点

            jiazai();//窗体展现出来显示已有歌曲
        }

        private void but_home_Click(object sender, EventArgs e)
        {
            this.Close();
            Tool.frM.Show();
        }

        private void but_fan_Click(object sender, EventArgs e)
        {
            this.Close();
            Tool.frM.Show();
        }

        private void but_yi_Click(object sender, EventArgs e)
        {
            Form_Yidian yi = new Form_Yidian();
            this.Close();
            yi.Show();
        }

        private void but_qie_Click(object sender, EventArgs e)
        {
            if (Tool.frM.txt_now.Text == "")
            {
                MessageBox.Show("您未添加歌曲,没发切歌哟!亲", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }
            else if (Tool.frM.txt_now.Text != "" && Tool.frM.txt_next.Text != "")
            {
                DialogResult result = MessageBox.Show("确定切歌", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    Playsong.CutSong(-);
                }
            }
            else
            {
                MessageBox.Show("现在播放的是最后一首歌,已经没歌可切喽!再去添加吧!", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information);
            }

        }

        private void but_again_Click(object sender, EventArgs e)
        {

        }

        private void txt_name_TextChanged(object sender, EventArgs e)
        {
            //当文本框的内容改变为空时,则显示所有歌曲
            if (txt_name.Text=="")
            {
                jiazai();
            }
        }

    }
}