1.利用新浪提供给的iframe直接嵌入，这种方式非常的简单，但是却没有交互性。代码如下：
<iframe frameborder="0" src="http://php.weather.sina.com.cn/widget/weather.php" scrolling="no" width="246" height="360"></iframe> |
2.抓取当天的天气，以指定格式输出。
涉及的核心代码如下：
public static ArrayList GetWeather(string code)
{
/*
[0] "北京 "string
[1] "雷阵雨 "string
[2] "9℃" string
[3] "29℃"string
[4] "小于3级"string
*/
string html = "";
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://weather.sina.com.cn/iframe/weather/" + code + "_w.html ");
request.Method = "Get";
//request.Timeout = 1;
request.ContentType = "application/x-www-form-urlencoded ";
WebResponse response = request.GetResponse();
Stream s = response.GetResponseStream();
StreamReader sr = new StreamReader(s, System.Text.Encoding.GetEncoding("GB2312"));
html = sr.ReadToEnd();
s.Close();
sr.Close();
}
catch (Exception err)
{
throw new Exception("访问地址出错~~~ ");
}
int count = html.Length; int starIndex = html.IndexOf("
", starIndex, count - starIndex); html = html.Substring(starIndex, endIndex - starIndex + 8);
//得到城市 int cityStartIndex = html.IndexOf("", 0, html.Length); int cityEndIndex = html.IndexOf("", 0, html.Length); string City = html.Substring(cityStartIndex + 3, cityEndIndex - cityStartIndex - 3);
//得到天气 int weatherStartIndex = html.IndexOf("", cityEndIndex); int weatherEndIndex = html.IndexOf("", weatherStartIndex); string Weather = html.Substring(weatherStartIndex + 3, weatherEndIndex - weatherStartIndex - 3);
//得到温度
int temperatureStartIndex = html.IndexOf("
int int1 = Temperature.IndexOf("℃", 0); int int2 = Temperature.IndexOf("～", 0); int int3 = Temperature.IndexOf("℃", int2);
string MinTemperature = Temperature.Substring(int2 + 1, int3 - int2); string MaxTemperature = Temperature.Substring(0, int2 - int1 + 2);
//得到风力 int windforceStartIndex = html.IndexOf("风力：", temperatureEndIndex); int windforceEndIndex = html.IndexOf(" ", windforceStartIndex); string Windforce = html.Substring(windforceStartIndex + 3, windforceEndIndex - windforceStartIndex - 3);
if (Windforce.Contains("小于") && (!Windforce.Contains("等于"))) //判断风力是否含有"小于"或"小于等于"字样将,如果有的话，将其替换为2- { //Windforce = Windforce.Replace("小于", "2-"); string strWindforce = Windforce.Substring(2, Windforce.Length - 3); int minWindforce = Int32.Parse(strWindforce) - 1; Windforce = Windforce.Replace("小于", minWindforce.ToString() + "-");
} else if (Windforce.Contains("小于等于")) { string strWindforce = Windforce.Substring(4, Windforce.Length - 5); int minWindforce = Int32.Parse(strWindforce) - 1; Windforce = Windforce.Replace("小于等于", minWindforce.ToString() + "-"); }
ArrayList al = new ArrayList(); al.Add(City); al.Add(Weather); al.Add(MinTemperature); al.Add(MaxTemperature); al.Add(Windforce);
return al; }
using System; using System.Collections.Generic; using System.Web;
namespace WebApplication8 { public class ConvertCode { public static string ConvertCodeByCity(string City) { string Code = ""; switch (City) { case "北京": Code = "110100"; break; case "天津": Code = "120100"; break; case "石家庄": Code = "130101"; break; case "唐山": Code = "130201"; break; case "秦皇岛": Code = "130301"; break; case "张家口": Code = "130701"; break; case "承德": Code = "130801"; break; case "廊坊": Code = "131001"; break; case "邯郸": Code = "130401"; break; case "邢台": Code = "130501"; break; case "保定": Code = "130601"; break; case "沧州": Code = "130901"; break; case "衡水": Code = "133001"; break; case "太原": Code = "140101"; break; case "大同": Code = "140201"; break; case "阳泉": Code = "140301"; break; case "晋城": Code = "140501"; break; case "朔州": Code = "140601"; break; case "忻州": Code = "142201"; break; case "离石": Code = "142331"; break; case "榆次": Code = "142401"; break; case "临汾": Code = "142601"; break; case "运城": Code = "142701"; break; case "长治": Code = "140401"; break; case "呼和浩特": Code = "150101"; break; case "包头": Code = "150201"; break; case "乌海": Code = "150301"; break; case "集宁": Code = "152601"; break; case "巴彦浩特": //这个城市搜索不到 Code = "152701"; break; case "临河": Code = "152801"; break; case "鄂尔多斯": //这个城市搜索不到 Code = "152921"; break; case "赤峰": Code = "150401"; break; case "通辽": Code = "152301"; break; case "锡林浩特": Code = "152502"; break; case "海拉尔": //这个城市搜索不到 Code = "152101"; break; case "乌兰浩特": Code = "152201"; break; case "沈阳": Code = "210101"; break; case "大连": Code = "210201"; break; case "鞍山": Code = "210301"; break; case "抚顺": Code = "210401"; break; case "本溪": Code = "210501"; break; case "锦州": Code = "210701"; break; case "营口": Code = "210801"; break; case "阜新": Code = "210901"; break; case "盘锦": Code = "211101"; break; case "铁岭": Code = "211201"; break; case "朝阳": Code = "211301"; break; case "葫芦岛": Code = "211401"; break; case "丹东": Code = "210601"; break; case "长春": Code = "220101"; break; case "吉林": Code = "220201"; break; case "四平": Code = "220301"; break; case "辽源": Code = "220401"; break; case "松原": Code = "220601"; break; case "白城": Code = "222301"; break; case "延边": Code = "222401"; break; case "通化": Code = "220501"; break; case "哈尔滨": Code = "230101"; break; case "鸡西": Code = "230301"; break; case "鹤岗": Code = "230401"; break; case "双鸭山": Code = "230501"; break; case "伊春": Code = "230701"; break; case "佳木斯": Code = "230801"; break; case "七台河": Code = "230901"; break; case "牡丹江": Code = "231001"; break; case "绥化": Code = "232301"; break; case "齐齐哈尔": Code = "230201"; break; case "大庆": Code = "230601"; break; case "黑河": Code = "232601"; break; case "大兴安岭": Code = "232700"; break; case "上海": Code = "310100"; break; case "南京": Code = "320101"; break; case "无锡": Code = "320201"; break; case "徐州": Code = "320301"; break; case "常州": Code = "320401"; break; case "苏州": Code = "320501"; break; case "南通": Code = "320600"; break; case "连云港": Code = "320701"; break; case "淮阴": Code = "320801"; break; case "盐城": Code = "320901"; break; case "扬州": Code = "321001"; break; case "镇江": Code = "321101"; break; case "泰州": Code = "321102"; break; case "宿迁": Code = "321103"; break; case "杭州": Code = "330101"; break; case "宁波": Code = "330201"; break; case "温州": Code = "330301"; break; case "嘉兴": Code = "330401"; break; case "湖州": Code = "330501"; break; case "绍兴": Code = "330601"; break; case "金华": Code = "330701"; break; case "衢州": Code = "330801"; break; case "舟山": Code = "330901"; break; case "丽水": Code = "332501"; break; case "台州": Code = "332602"; break; case "合肥": Code = "340101"; break; case "芜湖": Code = "340201"; break; case "蚌埠": Code = "340301"; break; case "淮南": Code = "340401"; break; case "马鞍山": Code = "340501"; break; case "淮北": Code = "340601"; break; case "铜陵": Code = "340701"; break; case "安庆": Code = "340801"; break; case "黄山市": Code = "341001"; break; case "阜阳": Code = "342101"; break; case "宿州": Code = "342201"; break; case "滁州": Code = "342301"; break; case "六安": Code = "342401"; break; case "宣城": Code = "342501"; break; case "巢湖": Code = "342601"; break; case "池州": Code = "342901"; break; case "福州": Code = "350101"; break; case "厦门": Code = "350201"; break; case "莆田": Code = "350301"; break; case "三明": Code = "350401"; break; case "泉州": Code = "350501"; break; case "漳州": Code = "350601"; break; case "南平": Code = "352101"; break; case "宁德": Code = "352201"; break; case "龙岩": Code = "352601"; break; case "陇南": Code = "352602"; break; case "庆阳": Code = "352603"; break; case "南昌": Code = "360101"; break; case "景德镇": Code = "360201"; break; case "赣州": Code = "362101"; break; case "萍乡": Code = "360301"; break; case "九江": Code = "360401"; break; case "新余": Code = "360501"; break; case "鹰潭": Code = "360601"; break; case "宜春": Code = "362201"; break; case "上饶": Code = "362301"; break; case "吉安": Code = "362401"; break; case "济南": Code = "370101"; break; case "青岛": Code = "370201"; break; case "淄博": Code = "370301"; break; case "枣庄": Code = "370401"; break; case "东营": Code = "370501"; break; case "烟台": Code = "370601"; break; case "潍坊": Code = "370701"; break; case "济宁": Code = "370801"; break; case "泰安": Code = "370901"; break; case "威海": Code = "371001"; break; case "日照": Code = "371100"; break; case "滨州": Code = "372301"; break; case "德州": Code = "372401"; break; case "聊城": Code = "372501"; break; case "临沂": Code = "372801"; break; case "菏泽": Code = "372901"; break; case "莱芜": Code = "372902"; break; case "郑州": Code = "410101"; break; case "开封": Code = "410201"; break; case "洛阳": Code = "410301"; break; case "平顶山": Code = "410401"; break; case "安阳": Code = "410501"; break; case "鹤壁": Code = "410601"; break; case "新乡": Code = "410701"; break; case "焦作": Code = "410801"; break; case "濮阳": Code = "410901"; break; case "许昌": Code = "411001"; break; case "漯河": Code = "411101"; break; case "三门峡": Code = "411201"; break; case "商丘": Code = "412301"; break; case "周口": Code = "412701"; break; case "驻马店": Code = "412801"; break; case "南阳": Code = "412901"; break; case "信阳": Code = "413001"; break; case "武汉": Code = "420101"; break; case "黄石": Code = "420201"; break; case "十堰": Code = "420301"; break; case "随州": Code = "420400"; break; case "宜昌": Code = "420501"; break; case "襄樊": Code = "420601"; break; case "鄂州": Code = "420701"; break; case "荆门": Code = "420801"; break; case "黄冈": Code = "422103"; break; case "孝感": Code = "422201"; break; case "咸宁": Code = "422301"; break; case "荆州": Code = "422421"; break; case "恩施": Code = "422801"; break; case "长沙": Code = "430101"; break; case "衡阳": Code = "430401"; break; case "邵阳": Code = "430501"; break; case "郴州": Code = "432801"; break; case "永州": Code = "432901"; break; case "韶山": Code = "430801"; break; case "张家界": Code = "430802"; break; case "怀化": Code = "433001"; break; case "吉首": Code = "433101"; break; case "株洲": Code = "430201"; break; case "湘潭": Code = "430301"; break; case "岳阳": Code = "430601"; break; case "常德": Code = "430701"; break; case "益阳": Code = "432301"; break; case "娄底": Code = "432501"; break; case "广州": Code = "440101"; break; case "佛山": Code = "440601"; break; case "深圳": Code = "440301"; break; case "汕尾": Code = "441501"; break; case "惠州": Code = "441301"; break; case "河源": Code = "441601"; break; case "清远": Code = "441801"; break; case "东莞": Code = "441901"; break; case "珠海": Code = "440401"; break; case "江门": Code = "440701"; break; case "肇庆": Code = "441201"; break; case "中山": Code = "442001"; break; case "湛江": Code = "440801"; break; case "茂名": Code = "440901"; break; case "韶关": Code = "440201"; break; case "汕头": Code = "440501"; break; case "梅州": Code = "441401"; break; case "阳江": Code = "441701"; break; case "潮州": Code = "441702"; break; case "顺德": Code = "441703"; break; case "揭阳": Code = "441704"; break; case "云浮": Code = "441705"; break; case "南宁": Code = "450101"; break; case "梧州": Code = "450401"; break; case "玉林": Code = "452501"; break; case "桂林": Code = "450301"; break; case "百色": Code = "452601"; break; case "河池": Code = "452701"; break; case "钦州": Code = "452802"; break; case "柳州": Code = "450201"; break; case "北海": Code = "450501"; break; case "防城港": Code = "450502"; break; case "贵港": Code = "450503"; break; case "贺州": Code = "450504"; break; case "海口": Code = "460100"; break; case "三亚": Code = "460200"; break; case "西沙群岛": Code = "460300"; break; case "成都": Code = "510101"; break; case "眉山": Code = "513321"; break; case "雅安": Code = "513101"; break; case "峨嵋山": Code = "513229"; break; case "自贡": Code = "510301"; break; case "重庆": Code = "500100"; break; case "万州": Code = "500102"; break; case "涪陵": Code = "500103"; break; case "南充": Code = "512901"; break; case "泸州": Code = "510501"; break; case "德阳": Code = "510601"; break; case "绵阳": Code = "510701"; break; case "遂宁": Code = "510901"; break; case "内江": Code = "511001"; break; case "乐山": Code = "511101"; break; case "宜宾": Code = "512501"; break; case "广元": Code = "510801"; break; case "达州": Code = "513021"; break; case "资阳": Code = "513401"; break; case "攀枝花": Code = "510401"; break; case "阿坝": Code = "510402"; break; case "甘孜": Code = "510403"; break; case "凉山": Code = "510404"; break; case "广安": Code = "510405"; break; case "巴中": Code = "510406"; break; case "黔江": Code = "500239"; break; case "贵阳": Code = "520101"; break; case "六盘水": Code = "520200"; break; case "铜仁": Code = "522201"; break; case "安顺": Code = "522501"; break; case "凯里": Code = "522601"; break; case "都匀": Code = "522701"; break; case "兴义": Code = "522301"; break; case "毕节": Code = "522421"; break; case "遵义": Code = "522101"; break; case "昆明": Code = "530101"; break; case "德宏": Code = "530201"; break; case "曲靖": Code = "532201"; break; case "楚雄": Code = "532301"; break; case "玉溪": Code = "532401"; break; case "红河": Code = "532501"; break; case "文山": Code = "532621"; break; case "思茅": Code = "532721"; break; case "昭通": Code = "532101"; break; case "西双版纳": Code = "532821"; break; case "大理": Code = "532901"; break; case "保山": Code = "533001"; break; case "怒江": Code = "533121"; break; case "丽江": Code = "533221"; break; case "迪庆": Code = "533321"; break; case "临沧": Code = "533521"; break; case "拉萨": Code = "540101"; break; case "昌都": Code = "542121"; break; case "山南": Code = "542221"; break; case "日喀则": Code = "542301"; break; case "那曲": Code = "542421"; break; case "阿里": Code = "542523"; break; case "林芝": Code = "542621"; break; case "西安": Code = "610101"; break; case "铜川": Code = "610201"; break; case "宝鸡": Code = "610301"; break; case "咸阳": Code = "610401"; break; case "渭南": Code = "612101"; break; case "汉中": Code = "612301"; break; case "安康": Code = "612401"; break; case "商洛": Code = "612501"; break; case "延安": Code = "612601"; break; case "榆林": Code = "612701"; break; case "兰州": Code = "620101"; break; case "白银": Code = "620401"; break; case "金昌": Code = "620301"; break; case "天水": Code = "620501"; break; case "张掖": Code = "622201"; break; case "武威": Code = "622301"; break; case "定西": Code = "622421"; break; case "平凉": Code = "622701"; break; case "临夏": Code = "622901"; break; case "嘉峪关": Code = "620201"; break; case "酒泉": Code = "622102"; break; case "西宁": Code = "630100"; break; case "果洛": Code = "632121"; break; case "海西": Code = "632221"; break; case "格尔木": Code = "632321"; break; case "海东": Code = "632521"; break; case "海北": Code = "632621"; break; case "玉树": Code = "632721"; break; case "黄南": Code = "632802"; break; case "银川": Code = "640101"; break; case "石嘴山": Code = "640201"; break; case "吴忠": Code = "642101"; break; case "固原": Code = "642221"; break; case "乌鲁木齐": Code = "650101"; break; case "克拉玛依": Code = "650201"; break; case "吐鲁番": Code = "652101"; break; case "哈密": Code = "652201"; break; case "昌吉": Code = "652301"; break; case "博乐": Code = "652701"; break; case "库尔勒": Code = "652801"; break; case "阿克苏": Code = "652901"; break; case "克州": Code = "653001"; break; case "喀什": Code = "653101"; break; case "伊犁": Code = "654101"; break; case "石河子": Code = "655001"; break; case "塔城": Code = "655002"; break; case "阿勒泰": Code = "655003"; break; case "台北": Code = "710001"; break; case "辽阳": Code = "211001"; break; case "和田": Code = "653201"; break; case "澳门": Code = "820000"; break; case "香港": Code = "810000"; break; default: break; } return Code; } } }
", thirdWindforceStartIndex);
string ThirdWindforce = Html.Substring(thirdWindforceStartIndex + 3, thirdWindforceEndIndex - thirdWindforceStartIndex - 3);
if (ThirdWindforce.Contains("至"))
{
}
else if (ThirdWindforce.Contains("<")) //判断风力是否含有"<"或"≤"字样将,如果有的话，将其替换为2-
{
string strWindforce = ThirdWindforce.Substring(1, ThirdWindforce.Length - 2);
int minWindforce = Int32.Parse(strWindforce) - 1;
ThirdWindforce = ThirdWindforce.Replace("<", minWindforce.ToString() + "-");
}
else if (ThirdWindforce.Contains("≤"))
{
string strWindforce = ThirdWindforce.Substring(1, ThirdWindforce.Length - 2);
int minWindforce = Int32.Parse(strWindforce) - 1;
ThirdWindforce = ThirdWindforce.Replace("≤", minWindforce.ToString() + "-");
}
#endregion
al.Add(FirstDayAndCity);
al.Add(FirstDate);
al.Add(FirstWeather);
al.Add(FirstMinTemperature);
al.Add(FirstMaxTemperature);
al.Add(FirstWindforce);
al.Add(secondDayAndCity);
al.Add(SecondDate);
al.Add(SecondWeather);
al.Add(SecondMinTemperature);
al.Add(SecondMaxTemperature);
al.Add(SecondWindforce);
al.Add(thirdDayAndCity);
al.Add(ThirdDate);
al.Add(ThirdWeather);
al.Add(ThirdMinTemperature);
al.Add(ThirdMaxTemperature);
al.Add(ThirdWindforce);
}
catch (Exception err)
{
}
return al;
}
3.获取三天以内的天气，以指定格式输出。
核心代码如下：
3.获取三天以内的天气，以指定格式输出。
核心代码如下：
public static ArrayList GetThreeDayWeather(string City)
{
ArrayList al = new ArrayList();
/*
[0] "今天 北京" string
[1] "2009-04-17，星期五" string
[2] "晴转多云" string
[3] "12℃" string
[4] "25℃" string
[5] "2-3级" string
[6] "明天 北京" string
[7] "2009-04-18，星期六" string
[8] "阴转阵雨" string
[9] "11℃" string
[10] "21℃" string
[11] "2-3级" string
[12] "后天 北京" string
[13] "2009-04-19，星期日" string
[14] "多云转阵雨" string
[15] "9℃" string
[16] "20℃" string
[17] "2-3级" string
*/
string Html = ""; //返回来的网页的源码
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = string.Format("city=" + City);
byte[] data = encoding.GetBytes(postData);
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://php.weather.sina.com.cn/search.php?city=" + System.Web.HttpContext.Current.Server.UrlEncode(City) + "&f=1&dpc=1");
request.Method = "Get";
request.ContentType = "application/x-www-form-urlencoded ";
WebResponse response = request.GetResponse();
Stream s = response.GetResponseStream();
StreamReader sr = new StreamReader(s, System.Text.Encoding.GetEncoding("GB2312"));
Html = sr.ReadToEnd();
s.Close();
sr.Close();
}
catch (Exception err)
{
throw new Exception("访问地址出错~~~ ");
}
//去除多余代码，便于分析跟提高效率
int count = Html.Length;
int starIndex = Html.IndexOf("
int endIndex = Html.IndexOf("
Html = Html.Substring(starIndex, endIndex - starIndex);
try
{
#region 得到今天的天气
//得到今天的标识跟城市
int firstDayAndCityStartIndex = Html.IndexOf("
", 0);
int firstDayAndCityEndIndex = Html.IndexOf("
", 0);string FirstDayAndCity = Html.Substring(firstDayAndCityStartIndex + 4, firstDayAndCityEndIndex - firstDayAndCityStartIndex - 4);
//得到今天的日期跟星期
int firstDateStartIndex = Html.IndexOf("
", firstDayAndCityEndIndex);
int firstDateEndIndex = Html.IndexOf("
string FirstDate = Html.Substring(firstDateStartIndex + 3, firstDateEndIndex - firstDateStartIndex - 3).Replace(" ", "，");
//得到今天的天气
int firstWeatherStartIndex = Html.IndexOf("
int firstWeatherEndIndex = Html.IndexOf(" ", firstWeatherStartIndex + 24);
string FirstWeather = Html.Substring(firstWeatherStartIndex + 24, firstWeatherEndIndex - firstWeatherStartIndex - 24);
//得到今天的温度
int firstTemperatureStartIndex = firstWeatherEndIndex + 1;
int firstTemperatureEndIndex = Html.IndexOf("
string FirstTemperature = Html.Substring(firstTemperatureStartIndex, firstTemperatureEndIndex - firstTemperatureStartIndex);
int int1 = FirstTemperature.IndexOf("℃", 0);
int int2 = FirstTemperature.IndexOf("～", 0);
int int3 = FirstTemperature.IndexOf("℃", int2);
string FirstMinTemperature = FirstTemperature.Substring(int2 + 1, int3 - int2);
string FirstMaxTemperature = FirstTemperature.Substring(0, int2 - int1 + 2);
//得到今天的风力
int firstWindforceStartIndex = Html.IndexOf("风力：", firstTemperatureEndIndex);
int firstWindforceEndIndex = Html.IndexOf("
string FirstWindforce = Html.Substring(firstWindforceStartIndex + 3, firstWindforceEndIndex - firstWindforceStartIndex - 3);
if (FirstWindforce.Contains("至"))
{
}
else if (FirstWindforce.Contains("<")) //判断风力是否含有"<"或"≤"字样将,如果有的话，将其替换为2-
{
string strWindforce = FirstWindforce.Substring(1, FirstWindforce.Length - 2);
int minWindforce = Int32.Parse(strWindforce) - 1;
FirstWindforce = FirstWindforce.Replace("<", minWindforce.ToString() + "-");
}
else if (FirstWindforce.Contains("≤"))
{
string strWindforce = FirstWindforce.Substring(1, FirstWindforce.Length - 2);
int minWindforce = Int32.Parse(strWindforce) - 1;
FirstWindforce = FirstWindforce.Replace("≤", minWindforce.ToString() + "-");
}
#endregion
#region 得到明天的天气
//得到明天的标识跟城市
int secondDayAndCityStartIndex = Html.IndexOf("
", firstWindforceEndIndex);
int secondDayAndCityEndIndex = Html.IndexOf("
", secondDayAndCityStartIndex);string secondDayAndCity = Html.Substring(secondDayAndCityStartIndex + 4, secondDayAndCityEndIndex - secondDayAndCityStartIndex - 4);
//得到明天的日期跟星期
int secondDateStartIndex = Html.IndexOf("
", secondDayAndCityEndIndex);
int secondDateEndIndex = Html.IndexOf("
string SecondDate = Html.Substring(secondDateStartIndex + 3, secondDateEndIndex - secondDateStartIndex - 3).Replace(" ", "，");
//得到明天的天气
int secondWeatherStartIndex = Html.IndexOf("
int secondWeatherEndIndex = Html.IndexOf(" ", secondWeatherStartIndex + 24);
string SecondWeather = Html.Substring(secondWeatherStartIndex + 24, secondWeatherEndIndex - secondWeatherStartIndex - 24);
//得到明天的温度
int secondTemperatureStartIndex = secondWeatherEndIndex + 1;
int secondTemperatureEndIndex = Html.IndexOf("
string SecondTemperature = Html.Substring(secondTemperatureStartIndex, secondTemperatureEndIndex - secondTemperatureStartIndex);
int int4 = SecondTemperature.IndexOf("℃", 0);
int int5 = SecondTemperature.IndexOf("～", 0);
int int6 = SecondTemperature.IndexOf("℃", int2);
string SecondMinTemperature = SecondTemperature.Substring(int5 + 1, int6 - int5);
string SecondMaxTemperature = SecondTemperature.Substring(0, int5 - int4 + 2);
//得到明天的风力
int secondWindforceStartIndex = Html.IndexOf("风力：", secondTemperatureEndIndex);
int secondWindforceEndIndex = Html.IndexOf("
string SecondWindforce = Html.Substring(secondWindforceStartIndex + 3, secondWindforceEndIndex - secondWindforceStartIndex - 3);
if (SecondWindforce.Contains("至"))
{
}
else if (SecondWindforce.Contains("<")) //判断风力是否含有"<"或"≤"字样将,如果有的话，将其替换为2-
{
string strWindforce = SecondWindforce.Substring(1, FirstWindforce.Length - 2);
int minWindforce = Int32.Parse(strWindforce) - 1;
SecondWindforce = SecondWindforce.Replace("<", minWindforce.ToString() + "-");
}
else if (SecondWindforce.Contains("≤"))
{
string strWindforce = SecondWindforce.Substring(1, SecondWindforce.Length - 2);
int minWindforce = Int32.Parse(strWindforce) - 1;
SecondWindforce = SecondWindforce.Replace("≤", minWindforce.ToString() + "-");
}
#endregion
#region 得到后天的天气
//得到后天的标识跟城市
int thirdDayAndCityStartIndex = Html.IndexOf("
", secondWindforceEndIndex);
int thirdDayAndCityEndIndex = Html.IndexOf("
", thirdDayAndCityStartIndex);string thirdDayAndCity = Html.Substring(thirdDayAndCityStartIndex + 4, thirdDayAndCityEndIndex - thirdDayAndCityStartIndex - 4);
//得到后天的日期跟星期
int thirdDateStartIndex = Html.IndexOf("
", thirdDayAndCityEndIndex);
int thirdDateEndIndex = Html.IndexOf("
string ThirdDate = Html.Substring(thirdDateStartIndex + 3, thirdDateEndIndex - thirdDateStartIndex - 3).Replace(" ", "，");
//得到后天的天气
int thirdWeatherStartIndex = Html.IndexOf("
int thirdWeatherEndIndex = Html.IndexOf(" ", thirdWeatherStartIndex + 24);
string ThirdWeather = Html.Substring(thirdWeatherStartIndex + 24, thirdWeatherEndIndex - thirdWeatherStartIndex - 24);
//得到后天的温度
int thirdTemperatureStartIndex = thirdWeatherEndIndex + 1;
int thirdTemperatureEndIndex = Html.IndexOf("
string ThirdTemperature = Html.Substring(thirdTemperatureStartIndex, thirdTemperatureEndIndex - thirdTemperatureStartIndex);
int int7 = ThirdTemperature.IndexOf("℃", 0);
int int8 = ThirdTemperature.IndexOf("～", 0);
int int9 = ThirdTemperature.IndexOf("℃", int2);
string ThirdMinTemperature = ThirdTemperature.Substring(int8 + 1, int9 - int8);
string ThirdMaxTemperature = ThirdTemperature.Substring(0, int8 - int7 + 2);
//得到后天的风力
int thirdWindforceStartIndex = Html.IndexOf("风力：", thirdTemperatureEndIndex);
int thirdWindforceEndIndex = Html.IndexOf("
特殊说明，使用第三种方法获取天气预报，输入城市的时候可能会受新浪提供的服务的影响，可能有些城市搜不到，前两种方法应该是不会受影响的。另外，由于代码写的比较急，所以难免代码的质量就会有些问题，还请大家多多包涵。单纯从代码上看，可能确实没有什么难度，可是如果在您的工作中如果因为我的代码为您节省了一些时间，笔者深感欣慰了。
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