1.引入WebService：http://www.webxml.com.cn/WebServices/WeatherWebService.asmx
2.声明接口→界面获取值传入接口→接口返回值处理→输入
public string sWeatherHTML = ""; protected void Button1_Click(object sender, EventArgs e) { string txtCity=TextBox1.Text; cn.com.webxml.www.WeatherWebService ws = new cn.com.webxml.www.WeatherWebService(); string[] aWeather = ws.getWeatherbyCityName(txtCity); StringBuilder sb=new StringBuilder(); sb.Append("<table>"); sb.Append(string.Format("<tr><td>城市：</td><td>{0}</td></tr>",aWeather[1].ToString())); sb.Append(string.Format("<tr><td>温度：</td><td>{0}</td></tr>", aWeather[5].ToString())); sb.Append(string.Format("<tr><td>气候：</td><td>{0}</td></tr>", aWeather[6].ToString())); if(aWeather[8].ToString()==aWeather[9].ToString()) { //转义：前面加@，双 双引号 sb.Append(string.Format(@"<tr><td>气候：</td><td><img src=""weather/a_{0}""></td></tr>", aWeather[6].ToString())); } else { sb.Append(string.Format(@"<tr><td>气候：</td><td><img src=""weather/a_{0}"">转<img src=""weather/a_{1}""></td></tr>", aWeather[8].ToString(), aWeather[9].ToString())); } sb.Append(string.Format("<tr><td>详情：</td><td>{0}</td></tr>", aWeather[10].ToString())); sb.Append("</table>"); sWeatherHTML = sb.ToString(); }
3.界面显示处理
<body> <form id="form1" runat="server"> <div> <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox> <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" /> </div> <div> <%=sWeatherHTML %> </div> </form> </body>