c#调用webservice服务几种方式（获取天气预报）

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace cweather
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        } 
        private void button1_Click（object sender EventArgs e）
        {
            int i = 0;
            cweather.webconn.WeatherWebService ws = new cweather.webconn.WeatherWebService（）;
            string[] r = ws.getWeatherbyCityName（“贵阳“）;
            this.richTextBox1.Text = ““;
            if （r == null）
            {
                this.richTextBox1.Text = “无“ + t

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         993  2016-12-21 10:06  cweather.sln
     文件       43008  2017-12-31 18:18  cweather.v12.suo
     目录           0  2018-02-08 21:37  cweather\
     文件        1014  2016-12-21 10:07  cweather\App.config
     目录           0  2018-02-08 21:37  cweather\bin\
     目录           0  2018-02-08 21:37  cweather\bin\Debug\
     文件       23552  2017-01-12 18:48  cweather\bin\Debug\cweather.exe
     文件        1014  2016-12-21 10:07  cweather\bin\Debug\cweather.exe.config
     文件       54784  2017-01-12 18:48  cweather\bin\Debug\cweather.pdb
     文件       24224  2017-12-31 18:14  cweather\bin\Debug\cweather.vshost.exe
     文件        1014  2016-12-21 10:07  cweather\bin\Debug\cweather.vshost.exe.config
     文件         490  2017-09-29 21:43  cweather\bin\Debug\cweather.vshost.exe.manifest
     目录           0  2016-12-21 10:07  cweather\bin\Release\
     文件        5348  2017-01-04 21:03  cweather\cweather.csproj
     文件        2932  2017-01-12 18:48  cweather\Form1.cs
     文件        5908  2017-01-09 18:36  cweather\Form1.Designer.cs
     文件        5817  2017-01-09 18:36  cweather\Form1.resx
     目录           0  2018-02-08 21:37  cweather\obj\
     目录           0  2018-02-08 21:37  cweather\obj\Debug\
     文件        1781  2017-12-31 18:14  cweather\obj\Debug\cweather.csproj.FileListAbsolute.txt
     文件         977  2017-01-09 18:36  cweather\obj\Debug\cweather.csproj.GenerateResource.Cache
     文件        4403  2016-12-25 21:58  cweather\obj\Debug\cweather.csprojResolveAssemblyReference.cache
     文件       23552  2017-01-12 18:48  cweather\obj\Debug\cweather.exe
     文件         180  2017-01-09 18:36  cweather\obj\Debug\cweather.Form1.resources
     文件       54784  2017-01-12 18:48  cweather\obj\Debug\cweather.pdb
     文件         180  2017-01-04 21:03  cweather\obj\Debug\cweather.Properties.Resources.resources
     文件        2450  2016-12-25 22:17  cweather\obj\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        7451  2017-12-31 18:14  cweather\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件           0  2016-12-21 10:06  cweather\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
     文件           0  2016-12-21 10:06  cweather\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
     文件           0  2016-12-21 10:06  cweather\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
............此处省略125个文件信息