C#通过抓取页面获取当天天气信息

///<summary>

///得到天气数据
///</summary>
///<returns>数组（0、天气；1、气温；2、风力；3、紫外线；4、空气）</returns>
publicstaticstring[]GetWeather()
{
Regexregex;
string[]weather=newstring[5];
stringcontent=””;
MatchmcTmp;
MatchmcCity;
intk=1;
HttpWebResponsetheResponse;
WebRequesttheRequest;
//ss1.htm注意：ss1-ss303代表了不同的城市，是不连续的
theRequest=WebRequest.Create(“http://weather.news.qq.com/inc/ss1.htm”);
try
{
theResponse=(HttpWebResponse)theRequest.GetResponse();
using(System.IO.Streamsm=theResponse.GetResponseStream())
{
System.IO.StreamReaderread=newSystem.IO.StreamReader(sm,Encoding.Default);
content=read.ReadToEnd();
}
}
catch(Exception)
{
content=””;
}
stringparttenTmp=”<tdheight=”23”width=”117”background=”/images/r_tembg5.gif”align=”center”>(?<item1>[^<]+)</td>”;
k=1;
regex=newRegex(parttenTmp,RegexOptions.Compiled|RegexOptions.IgnoreCase);
for(mcTmp=regex.Match(content),k=1;mcTmp.Success;mcTmp=mcTmp.NextMatch(),k++)
{
weather[0]=mcTmp.Groups[“item1″].Value;
}
parttenTmp=”height=”23”align=”center”>(?<item1>[^/]+)</td>”;
k=1;
regex=newRegex(parttenTmp,RegexOptions.Compiled|RegexOptions.IgnoreCase);
for(mcTmp=regex.Match(content),k=1;mcTmp.Success;mcTmp=mcTmp.NextMatch(),k++)
{
weather[k]=mcTmp.Groups[“item1”].Value;
}
returnweather;
}