C#操作6-10

第六题结构类型数据

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

namespace 第六题
{
    struct Student
    {
        string name;

        public string Name
        {
            get { return name; }
            set { name = value; }
        }
        string sex;

        public string Sex
        {
            get { return sex; }
            set { sex = value; }
        }
        int age;

        public int Age
        {
            get { return age; }
            set { age = value; }
        }
        int height;

        public int Height
        {
            get { return height; }
            set { height = value; }
        }
        int weight;

        public int Weight
        {
            get { return weight; }
            set { weight = value; }
        }


    }
}





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

namespace 第六题
{
    class Program
    {
        static void Main(string[] args)
        {
            Student stu1 = new Student();
            stu1.Name = "张三";
            stu1.Age = 21;
            stu1.Height = 180;
            stu1.Weight = 130;
            stu1.Sex = "男";
        }
    }
}

第七题建立一个标签

 

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 第七题
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.textBox1.Text = this.label1.Text;
        }
    }
}

第八题成绩评优

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

        private void btConfirm_Click(object sender, EventArgs e)
        {
            int score;
            int n;
            score = Convert.ToInt32(tbScore.Text);
            n = score / 10;
            switch(n)
            {
                case 10:
                case 9:
                lbgraded.Text="成绩为优秀！";
                break;
                case 8:
                lbgraded.Text="成绩为良好！";
                break;
                case 7:
                lbgraded.Text="成绩为中等！";
                break;
                case 6:
                lbgraded.Text="成绩及为格！";
                break;
                case 5: 
        
                case 4:
               
                case 3:
              
                case 2:
             
                case 1:
           
                case 0:lbgraded.Text="成绩为不及格！";break;
                default:MessageBox.Show("输入的成级超过了范围，请输入！","提示框");break;

            }
        }
    }
}

第九题MyCalss类

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

namespace 第九题
{
    class MyClass
    {
        #region 定义 public 类成员

        public string publicVar;

        public void publicMethod()
        {
            Console.WriteLine("您现在调用的是public类型的方法！");
        }

        #endregion

        #region 定义 protected 类成员

        protected string protectedVar;

        protected void protectedMethod()
        {
            Console.WriteLine("您现在调用的是protected类型的方法！");
        }

        #endregion

        #region 定义 private 类成员

        private string privateVar;

        private void privateMethod()
        {
            Console.WriteLine("您现在调用的是private类型的方法！");
        }

        #endregion
    }
}





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

namespace 第九题
{
    class MyMain:MyClass
    {

        
        
        public static void Main()
        {
            MyClass obj = new MyClass();

            //不会产生错误
            //1访问public修饰的成员

            obj.publicMethod();
            obj.publicVar = "test1";



            //将会产生编译错误,无法运行
            //2访问protected修饰的成员 

            //obj.protectedMethod();
            //obj.protectedVar = "test1";



            //将会产生编译错误,无法运行
            //3访问private修饰的成员

            //obj.privateMethod();
            //obj.privateVar = "test1";
  
        }
    }
}

第十题服务器地址

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data.OleDb;

namespace 第十题
{
    class Program
    {


        static void Main(string[] args)
        {
                   string strCon = "server =202.196.131.26;  database=test;  uid =sa;  pwd=administrator";
                   SqlConnection connection = new SqlConnection(strCon);


                   //获取当前应用程序的路径
                   string parth = Environment.CurrentDirectory;
                   string strcon = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+parth+" \db\jobtypeDB.mdb";
                   OleDbConnection connection = new OleDbConnection(strCon);
        }
    }
}