我想取一个页面的返回值，保存到一个string变量里怎么弄

Question

网址
http://www.anttna.com/cell2gps/cell2gps.php?lac=4493&cellid=8473

Answer 1

using System.Net;namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            WebClient client = new WebClient();
            byte[] bt = client.DownloadData("http://www.anttna.com/cell2gps/cell2gps.php?lac=4493&cellid=8473");
            string s = System.Text.Encoding.GetEncoding("GB2312").GetString(bt);
            Console.WriteLine(s);
        }
    }}

Answer 2

        public static string GetPageHTML(string url)
        {
         
            try
            {
                HttpWebRequest wr = WebRequest.Create(url) as HttpWebRequest;
                wr.Method = "get";
                wr.Accept = "*/*";
                wr.Headers.Add("Accept-Language:   zh-cn");
                wr.Headers.Add("UA-CPU:   x86");
                wr.Headers.Add("Accept-Encoding:   gzip, deflate");
                wr.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1;  Embedded Web Browser from: http://bsalsa.com/; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)";
                wr.KeepAlive = true;
                wr.ServicePoint.Expect100Continue = false;
                wr.AllowAutoRedirect = false;                HttpWebResponse wre = wr.GetResponse() as HttpWebResponse;
                StreamReader sreader = new StreamReader(wre.GetResponseStream(), Encoding.UTF8);
                string sHtml = sreader.ReadToEnd();
                wre.Close();
                return sHtml;
            }
            catch 
            {
                return "";
            }
        }

Answer 3

你的页面最好用标签来区分，因为你这样是得到全部值，都判断不了那个是那个，如果你只想是要几个值的，有XML来存取更方便呀！

Answer 4

两种方法都可以！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.Net;
using System.IO;namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            WebClient client = new WebClient();
            byte[] bt = client.DownloadData("http://www.anttna.com/cell2gps/cell2gps.php?lac=4493&cellid=8473");
            string s = System.Text.Encoding.GetEncoding("GB2312").GetString(bt);
            Console.WriteLine(s);
            this.label1.Text = s;
        }
        public static string GetPageHTML(string url)
        {            try
            {
                HttpWebRequest wr = WebRequest.Create(url) as HttpWebRequest;
                wr.Method = "get";
                wr.Accept = "*/*";
                wr.Headers.Add("Accept-Language: zh-cn");
                wr.Headers.Add("UA-CPU: x86");
                wr.Headers.Add("Accept-Encoding: gzip, deflate");
                wr.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Embedded Web Browser from: http://bsalsa.com/; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)";
                wr.KeepAlive = true;
                wr.ServicePoint.Expect100Continue = false;
                wr.AllowAutoRedirect = false;                HttpWebResponse wre = wr.GetResponse() as HttpWebResponse;
                StreamReader sreader = new StreamReader(wre.GetResponseStream(), Encoding.GetEncoding("GBK"));
                string sHtml = sreader.ReadToEnd();
                wre.Close();
                return sHtml;
            }
            catch
            {
                return "";
            }
        }        private void button2_Click(object sender, EventArgs e)
        {
            string a = GetPageHTML("http://www.anttna.com/cell2gps/cell2gps.php?lac=4493&cellid=8473");
            this.label1.Text=a;
        } 
     }
}