C# 获取天气预报

可以根据城市获取天气预报信息

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.OleDb;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        void tianqi（string chengshi）
        {
            OleDbConnection cnn = new OleDbConnection（）;
            cnn.ConnectionString = “Provider=Microsoft.Jet.OLEDB.4.0;Data Source=“ + Application.StartupPath + “/DB.cab;Jet OLEDB:Database Password=123“;
            cnn.Open（）;
            DataSet ds = new DataSet（）;
            OleDbDataAdapter oda = new OleDbDataAdapter（“Select * from 地址 where 城市=‘“

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件         77  2013-09-19 08:17  天气预报\WindowsFormsApplication1\app.config

     文件     159744  2013-09-20 07:54  天气预报\WindowsFormsApplication1\bin\Debug\DB.cab

     文件     305152  2013-09-20 09:39  天气预报\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe

     文件         77  2013-09-19 08:17  天气预报\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe.config

     文件      30208  2013-09-20 09:39  天气预报\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb

     文件      14328  2014-01-08 13:33  天气预报\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe

     文件         77  2013-09-19 08:17  天气预报\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.config

     文件        490  2007-07-21 01:33  天气预报\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.manifest

     文件       2557  2013-09-20 09:39  天气预报\WindowsFormsApplication1\Form1.cs

     文件       4825  2013-09-20 09:31  天气预报\WindowsFormsApplication1\Form1.Designer.cs

     文件       5814  2013-09-20 09:31  天气预报\WindowsFormsApplication1\Form1.resx

     文件       3732  2013-09-19 09:41  天气预报\WindowsFormsApplication1\Form2.cs

     文件      14411  2013-09-19 09:41  天气预报\WindowsFormsApplication1\Form2.Designer.cs

     文件     435136  2013-09-19 09:41  天气预报\WindowsFormsApplication1\Form2.resx

     文件       2649  2014-01-08 13:33  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.FileListAbsolute.txt

     文件        905  2013-09-20 09:31  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.csproj.GenerateResource.Cache

     文件     305152  2013-09-20 09:39  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.exe

     文件        180  2013-09-20 09:31  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form1.resources

     文件     287121  2013-09-19 09:41  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Form2.resources

     文件      30208  2013-09-20 09:39  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.pdb

     文件        180  2013-09-19 09:36  天气预报\WindowsFormsApplication1\obj\Debug\WindowsFormsApplication1.Properties.Resources.resources

     文件        505  2013-09-19 08:16  天气预报\WindowsFormsApplication1\Program.cs

     文件       1390  2013-09-19 08:16  天气预报\WindowsFormsApplication1\Properties\AssemblyInfo.cs

     文件       2898  2013-09-19 08:16  天气预报\WindowsFormsApplication1\Properties\Resources.Designer.cs

     文件       5612  2013-09-19 08:16  天气预报\WindowsFormsApplication1\Properties\Resources.resx

     文件       1109  2013-09-19 08:16  天气预报\WindowsFormsApplication1\Properties\Settings.Designer.cs

     文件        249  2013-09-19 08:16  天气预报\WindowsFormsApplication1\Properties\Settings.settings

     文件       4215  2013-09-19 09:36  天气预报\WindowsFormsApplication1\WindowsFormsApplication1.csproj

     文件        962  2013-09-19 08:16  天气预报\WindowsFormsApplication1.sln

    ..A..H.     18432  2014-01-08 13:34  天气预报\WindowsFormsApplication1.suo

............此处省略13个文件信息