第18周冲刺

1.计划

估计需要一周

2.需求分析

作为一名排球比赛的现场工作人员，我希望能精确统计每一名队员的得分及技术统计，以便颁发每场比赛最有价值球员奖，以及确定赛会的最佳阵容

3.设计文档

当用户进入程序时，可以看到以往队员的分数，和得分类型。可以输入球衣号，或者姓名，查询球员信息。或者点击最佳MVP按钮，会按得分高低排列，得分最高的为mvp，或者点击最佳阵容，会在文本区域显示本场最佳阵容。双击表格，可以删除所选的表格。点击编辑球员信息按钮，可以编辑球员信息。

>界面设计

 

 活动图

 具体代码：

main.cs

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;
using System.Data.SqlClient;

namespace 排球程序
{
    public partial class Main : Form
    {
        public Main()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // TODO: 这行代码将数据加载到表“volleyDataSet.Score”中。您可以根据需要移动或删除它。
            this.scoreTableAdapter.Fill(this.volleyDataSet.Score);
            DataGridView1DateLoad();

        }
        private void DataGridView1DateLoad(string sql = "select * from Score")
        {
            SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=Volley;Integrated Security=True");
            SqlDataAdapter adapter = new SqlDataAdapter(sql,con);
            DataSet ds = new DataSet();
            con.Open();
            adapter.Fill(ds);
            con.Close();
            dataGridView1.DataSource=ds.Tables[0];
        }

        private void butMVP_Click(object sender, EventArgs e)
        {
           
            StringBuilder sql = new StringBuilder("Select * from Score order by score desc");
            
            
            DataGridView1DateLoad(sql.ToString());

        }

        private void buttonSelect_Click(object sender, EventArgs e)
        {
            string id = textBoxId.Text.Trim();
            string name = textBoxName.Text.Trim();
            StringBuilder sql = new StringBuilder("Select * from Score where 1=1");
            if (!string .IsNullOrEmpty(id))
            {
                sql.Append(" and id="+id);
            }
            if (!string .IsNullOrEmpty(name))
            {
                sql.Append(" and name like '%"+name+"%'");
            }
            DataGridView1DateLoad(sql.ToString());
        }

        private void butTeamer_Click(object sender, EventArgs e)
        {
            StringBuilder sql = new StringBuilder("Select * from Score where scorestyle='拦网'or scorestyle='发球' or scorestyle='扣球'order by score desc");
            DataGridView1DateLoad(sql.ToString());
        }

         private void dataGridView1_CellContentDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            DialogResult result = MessageBox.Show("确定删除数据？","确定删除",MessageBoxButtons.OKCancel);
            if (result==DialogResult.OK)
            {
                int id = Convert.ToInt32(dataGridView1.Rows[e.RowIndex].Cells[0].Value);
                SqlConnection con = new SqlConnection("Data Source=.;Initial Catalog=Volley;Integrated Security=True");
                string sql = " delect Score where id=" + id;
                SqlCommand cmd = new SqlCommand(sql,con);
                con.Open();
                cmd.ExecuteNonQuery();
                con.Close();
                DataGridView1DateLoad();
            }
            
        }

         private void buttonEdit_Click(object sender, EventArgs e)
         {
             Edit E = new Edit();
             E.Show();
             this.Hide();
         }

        
    }
}

Edit.cs

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;
using System.Data.SqlClient;

namespace 排球程序
{
    public partial class Edit : Form
    {
        public Edit()
        {
            InitializeComponent();
        }

        private void buttonClear_Click(object sender, EventArgs e)
        {
            textBoxId.Text = "";
            textBoxName.Text = "";
            textBoxScore.Text = "";
            textBoxScorestyle.Text = "";
            textBoxTeam.Text = "";
        }

        private void buttonCofirm_Click(object sender, EventArgs e)
        {
            string id = textBoxId.Text.Trim();
            string name = textBoxName.Text.Trim();
            string team = textBoxTeam.Text.Trim();
            string score = textBoxScore.Text.Trim();
            string scorestyle = textBoxScorestyle.Text.Trim();
            if (string .IsNullOrEmpty(id)||(string .IsNullOrEmpty(name)||(string .IsNullOrEmpty(team))||(string .IsNullOrEmpty(scorestyle))||(string .IsNullOrEmpty(score))))
            
            {
                MessageBox.Show("球衣号，姓名，队伍，得分，得分类型都不能为空");
            }
            else
           {
               SqlConnection con=new SqlConnection ("Data Source=.;Initial Catalog=Volley;Integrated Security=True") ;
                string sql=string .Format(" insert into Score value('{0}','{1}','{2}','{3}','{4}')",id,name,team,score,scorestyle);
                SqlCommand cmd=new SqlCommand (sql,con);
                con.Open();
                int count=cmd.ExecuteNonQuery();
                con.Close();
                if (count>0)
               {
                  MessageBox.Show("插入队员数据成功");
               }
                this.Close();
           }
        }
    }
}

代码复审：

暂未发现错误

测试：

查询功能块能够使用，编辑功能块能够使用，删除功能块可以使用

事后总结：我发现算法很重要，就像mvp的算法，我用的是得分排列的从高到低，得分最高的是第一个，也就是mvp，但是这种算法毕竟太简单了，也不太符合现实生活的情况，以后要多多学习算法。