Google API 获取天气预报信息

转自： http://www.chncms.com/2010/08/30/GOOGLEAPIWEATHER.html
要获得天气预报信息可用利用Google提供的借口，
http://www.google.com/ig/api?hl=zh_cn&weather=城市名称（拼音）
它将返回一个用xml封装的天气信息。

示例：

http://www.google.com/ig/api?hl=zh_cn&weather=shanghai
返回：
<?xml version="1.0" ?>

- <xml_api_reply version="1">

- <weather module_id="0" tab_id="0" mobile_row="0" mobile_zipped="1" row="0"section="0">

- <forecast_information>

<city data="Shanghai, Shanghai" />

<postal_code data="shanghai" />

<latitude_e6 data="" />

<longitude_e6 data="" />

<forecast_date data="2010-08-30" />

<current_date_time data="2010-08-30 17:00:00 +0000" />

<unit_system data="SI" />

</forecast_information>

- <current_conditions>

<condition data="多云" />

<temp_f data="84" />

<temp_c data="29" />

<humidity data="湿度： 62%" />

<icon data="/ig/images/weather/cn_cloudy.gif" />

<wind_condition data="风向： 东北、风速：7 米/秒" />

</current_conditions>

- <forecast_conditions>

<day_of_week data="周一" />

<low data="27" />

<high data="33" />

<icon data="/ig/images/weather/chance_of_rain.gif" />

<condition data="可能有雨" />

</forecast_conditions>

- <forecast_conditions>

<day_of_week data="周二" />

<low data="26" />

<high data="34" />

<icon data="/ig/images/weather/chance_of_storm.gif" />

<condition data="可能有暴风雨" />

</forecast_conditions>

- <forecast_conditions>

<day_of_week data="周三" />

<low data="26" />

<high data="33" />

<icon data="/ig/images/weather/chance_of_storm.gif" />

<condition data="可能有暴风雨" />

</forecast_conditions>

- <forecast_conditions>

<day_of_week data="周四" />

<low data="26" />

<high data="34" />

<icon data="/ig/images/weather/chance_of_rain.gif" />

<condition data="可能有雨" />

</forecast_conditions>

</weather>

</xml_api_reply>

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