private readonly string urlstart = "http://www.weather.com.cn/weather/101200101.shtml"; //爬取的网站
public bool Crawl() //开始爬取
{
try
{
string strRegex = @"<h1>[0-9]*?日（今天）</h1>[\s\S]*?<h1>[0-9]*?日（明天）</h1>";
string url = HttpHelper.GetInformation(urlstart, strRegex); //爬取网站的Html,并定位于有效信息
strRegex = @"""wea"">[\s\S]*?<";
Regex r = new Regex(strRegex, RegexOptions.IgnoreCase);
Match match = r.Match(url);
string str = match.ToString();
string todayWether = str.Substring(6, str.Length - 6 - 1);
strRegex = @"-?[0-9]*℃";
r = new Regex(strRegex, RegexOptions.IgnoreCase);
match = r.Match(url);
str = match.ToString();
string todayTemper = str;
strRegex = @"<span title=""[\s\S]*?""";
r = new Regex(strRegex, RegexOptions.IgnoreCase);
match = r.Match(url);
str = match.ToString();
string todayWind = str.Substring(13, str.Length - 13 - 1);
wether = new TodayWether(todayWether, todayTemper, todayWind);
return(true); //获取成功
}
catch (Exception)
{
return(false); //获取失败
}
}
public TodayWetherPanel(TodayWether wether) : base()
{
if (wether != null)
{
label_wether.Text = wether.Wether;
label_temper.Text = wether.Temperature;
label_wind.Text = wether.Wind;
}
Init();
}