使用YQL & Yahoo Weather API 查詢天氣

先到 https://weather.yahoo.com/ 查天氣區域代碼，例如輸入 Kaohsiung 查詢，
就會顯示 Kaohsiung City的天氣，此時網址為：
https://weather.yahoo.com/taiwan/kaohsiung-city/kaohsiung-city-2306180/
其中的2306180即為高雄市代碼。

再利用Yahoo Weather API
https://developer.yahoo.com/weather/
輸入YQL：
select item.condition from weather.forecast where woeid = 2306180 and u="c"
u="c"代表用攝氏表示，預設為華氏，在Endpoint就會產生所需要的JSON(或XML)資料回傳網址。

回傳的JSON資料，key=value可參考 https://developer.yahoo.com/weather/documentation.html

之後就可以在網頁上顯示天氣資料了，譬如要顯示天氣狀況和溫度：

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$.getJSON('https://query.yahooapis.com/v1/public/yql?q=select%20item.condition%20from%20weather.forecast%20where%20woeid%20%3D%202306180%20and%20u%3D%22c%22&format=json&callback=?', function(json) { var w_code = weather_con[json.query.results.channel.item.condition.code.toString()]; var w_temp = json.query.results.channel.item.condition.temp + "℃"; console.log(w_code); console.log(w_temp); }); //這個我翻得可能不是很標準... weather_con = { "0":"龍捲風", "1":"熱帶風暴", "2":"颶風", "3":"強雷陣雨", "4":"雷陣雨", "5":"混合雨雪", "6":"混合雨雪", "7":"混合雨雪", "8":"冰凍小雨", "9":"細雨", "10":"凍雨", "11":"陣雨", "12":"陣雨", "13":"飄雪", "14":"陣雪", "15":"吹雪", "16":"下雪", "17":"冰雹", "18":"雨雪", "19":"多塵", "20":"多霧", "21":"陰霾", "22":"多煙", "23":"狂風大作", "24":"有風", "25":"冷", "26":"多雲", "27":"晴間多雲（夜）", "28":"晴間多雲（日）", "29":"晴間多雲（夜）", "30":"晴間多雲（日）", "31":"清晰的（夜）", "32":"晴朗", "33":"晴朗（夜）", "34":"晴朗（日）", "35":"雨和冰雹", "36":"炎熱", "37":"雷陣雨", "38":"零星雷陣雨", "39":"零星雷陣雨", "40":"零星雷陣雨", "41":"大雪", "42":"零星陣雪", "43":"大雪", "44":"多雲", "45":"雷陣雨", "46":"陣雪", "47":"雷陣雨", "3200":"資料錯誤" };