首发：

visual studio 2015，界面越来越漂亮了。

比起swift和python啥的，还是c#外观上更像java，windows的界面编程，wpf的方式跟android等编程也蛮像，声明式的界面定义，界面和controller类当然绑定，总之玩着很爽就是了。

现在在想的问题是想个啥主题做着……

下面的代码是学习关键点时练的，老规矩，界面交互+web请求+数据库访问——

using MySql.Data.MySqlClient;

using qdf_test_wpf_1;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Net;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

namespace WpfApplication2

{

    /// <summary>

    /// MainWindow.xaml 的交互逻辑

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

        }

        private void button_Click(object sender, RoutedEventArgs e)

        {

            //进行web请求

            HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create("http://427studio.net/api/blog");

            httpRequest.Timeout = 2000;

            httpRequest.Method = "GET";

            HttpWebResponse httpResponse = (HttpWebResponse)httpRequest.GetResponse();

            StreamReader sr = new StreamReader(httpResponse.GetResponseStream(), System.Text.Encoding.GetEncoding("utf-8"));

            string result = sr.ReadToEnd();

            result = result.Replace("\r", "").Replace("\n", "").Replace("\t", "");

            int status = (int)httpResponse.StatusCode;

            sr.Close();

            //解析json

            List<Person> ps = JSON.parse<List<Person>>(result);

            foreach (Person p in ps)

            {

                Console.WriteLine(p.title);

            }

            jsonCount.Content = "js数组长度：" + ps.Count();

            //数据库连接

            string str = "Server=那啥;User ID=那啥;Password=那啥;Database=那啥;CharSet=那啥;";

            MySqlConnection conn = new MySqlConnection(str);//实例化链接

            conn.Open();//开启连接

            string strcmd = "select id, name from admin_user";

            MySqlCommand cmd = new MySqlCommand(strcmd, conn);

            MySqlDataReader reader = cmd.ExecuteReader();

            int rowCount = 0;

            while (reader.Read())

            {

                String title = reader.GetString("name");

                //Console.WriteLine(title);

                rowCount++;

            }

            dbCount.Content = "数据库记录行数：" + rowCount;

            reader.Close();

            conn.Close();

            //文件系统

            FileStream fs = new FileStream("test.txt", FileMode.OpenOrCreate);

            StreamWriter sw = new StreamWriter(fs);

            sw.Write("由wpf程序写入！");

            sw.Close();

        }

    }

}

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