天气预报接口和城市代码

今天在研究微信天气预报的时候，获取到json数据，后来json_decode为对象，但是去看不懂他的意思，于是百度搜索到的结果：

{   "weatherinfo":  
                { <!-- 基本信息 -->    
                    "city":"北京",  
                    "city_en":"beijing",  
                    "date_y":"2012年8月14日",  
                    "date":"",  
                    "week":"星期二",  
                    "fchh":"18",  
                    "cityid":"101010100",  
                    <!-- 从今天开始到第六天的每天的<strong>天气</strong>情况，这里的温度是摄氏温度 -->  
                    "temp1":"19℃~31℃",  
                    "temp2":"21℃~31℃",  
                    "temp3":"22℃~28℃",  
                    "temp4":"20℃~28℃",  
                    "temp5":"21℃~29℃",  
                    "temp6":"22℃~31℃",  
                    <!-- 从今天开始到第六天的每天的<strong>天气</strong>情况，这里的温度是华氏温度 -->  
                    "tempF1":"66.2℉~87.8℉",  
                    "tempF2":"69.8℉~87.8℉",  
                    "tempF3":"71.6℉~82.4℉",  
                    "tempF4":"68℉~82.4℉",  
                    "tempF5":"69.8℉~84.2℉",  
                    "tempF6":"71.6℉~87.8℉",  
                    <!-- <strong>天气</strong>描述 -->    
                    "weather1":"阵雨转晴",  
                    "weather2":"晴",  
                    "weather3":"多云转雷阵雨",  
                    "weather4":"雷阵雨",  
                    "weather5":"多云转阴",  
                    "weather6":"雷阵雨",  
                    <!-- <strong>天气</strong>描述图片序号 -->    
                    "img1":"3",  
                    "img2":"0",  
                    "img3":"0",  
                    "img4":"99",  
                    "img5":"1",  
                    "img6":"4",  
                    "img7":"4",  
                    "img8":"99",  
                    "img9":"1",  
                    "img10":"2",  
                    "img11":"4",  
                    "img12":"99",  
                    "img_single":"0",  
                    <!-- 图片名称 -->   
                    "img_title1":"阵雨",  
                    "img_title2":"晴",  
                    "img_title3":"晴",  
                    "img_title4":"晴",  
                    "img_title5":"多云",  
                    "img_title6":"雷阵雨",  
                    "img_title7":"雷阵雨",  
                    "img_title8":"雷阵雨",  
                    "img_title9":"多云",  
                    "img_title10":"阴",  
                    "img_title11":"雷阵雨",  
                    "img_title12":"雷阵雨",  
                    "img_title_single":"晴",  
                    <!-- 风速描述 -->    
                    "wind1":"微风",  
                    "wind2":"微风",  
                    "wind3":"微风",  
                    "wind4":"微风",  
                    "wind5":"微风",  
                    "wind6":"微风",  
                    "fx1":"微风",  
                    "fx2":"微风",  
                    <!-- 风速级别描述 -->   
                    "fl1":"小于3级",  
                    "fl2":"小于3级",  
                    "fl3":"小于3级",  
                    "fl4":"小于3级",  
                    "fl5":"小于3级",  
                    "fl6":"小于3级",  
                    <!-- 今天穿衣指数 -->    
                    "index":"炎热",  
                    "index_d":"<strong>天气</strong>炎热，建议着短衫、短裙、短裤、薄型T恤衫、敞领短袖棉衫等清凉夏季服装。",  
                    <!-- 48小时穿衣指数 -->    
                    "index48":"炎热",  
                    "index48_d":"<strong>天气</strong>炎热，建议着短衫、短裙、短裤、薄型T恤衫、敞领短袖棉衫等清凉夏季服装。",  
                    <!-- 紫外线及48小时紫外线 -->  
                    "index_uv":"很强",  
                    "index48_uv":"强",  
                    <!-- 洗车 -->  
                    "index_xc":"较不宜",  
                    <!-- 旅游 -->   
                    "index_tr":"适宜",  
                    <!-- 舒适指数 -->  
                    "index_co":"较不舒适",  
                    "st1":"31",  
                    "st2":"17",  
                    "st3":"31",  
                    "st4":"22",  
                    "st5":"27",  
                    "st6":"22",  
                    <!-- 晨练 -->  
                    "index_cl":"适宜",  
                    <!-- 晾晒 -->   
                    "index_ls":"极适宜",  
                    <!-- 过敏 -->   
                    "index_ag":"易发"  
                }  
}  

　通过城市代码获取天气接口网址（返回json格式数据）：

http://www.weather.com.cn/data/sk/101280102.html

http://m.weather.com.cn/data/101280102.html

http://m.weather.com.cn/atad/101230201.html

上面的三个接口偶尔会打不开，你试着那个快你用哪一个

通过上面的解释你可以写出自己想要发的天气预报内容。

 我把生成的所有天气代码的数组上传到解压包里了（地址）：http://files.cnblogs.com/geek12/tianqi.zip

可以复制后面的连接下载