JS源生调用天气事件风向

jsonp('https://api.map.baidu.com/api?v=2.0&ak=Dv1NMU23dh1sGS9n2tUouDEYY96Dfzh3&s=1&callback=getCity');window.onload=function(){    //请求天气车数据    btn.onclick=function (){        jsonp(createUrl()[0]);        jsonp(createUrl()[1]);    }};function getCity(){    function city(result){        //去掉城市名后的"市"        var city = result.name.substring(0,result.name.length-1);        //请求当前城市的天气数据        jsonp(createUrl(city)[0]);        jsonp(createUrl(city)[1]);    }    var cityName = new BMap.LocalCity();    cityName.get(city);}// 数据请求函数function jsonp(url){    var script = document.createElement('script');    script.src = url;    document.body.insertBefore(script, document.body.firstChild);    document.body.removeChild(script);}//数据请求成功回调函数，用于将获取到的数据放入页面相应位置function getWeather(response) {    var oSpan = document.getElementsByClassName('info');    var data = response.result;    oSpan[0].innerHTML=data[0].citynm;    oSpan[1].innerHTML=data[0].days;    oSpan[2].innerHTML=data[0].week;    oSpan[3].innerHTML=data[0].weather;    oSpan[4].innerHTML=data[0].temperature;    oSpan[5].innerHTML=data[0].winp;    oSpan[6].innerHTML=data[0].wind;    var aDiv = document.getElementsByClassName('future_box');    for(var i=0; i<aDiv.length; i++){        var aSpan = aDiv[i].getElementsByClassName('future_info');        aSpan[0].innerHTML = data[i+1].days;        aSpan[1].innerHTML = data[i+1].week;        aSpan[2].innerHTML =data[i+1].weather;        aSpan[3].innerHTML = data[i+1].temperature;    }//根据返回数据，替换不同天气图片    changeImg(response);}function getTodayWeather(response){    var oSpan = document.getElementsByClassName('info');    var data = response.results;    oSpan[7].innerHTML=data[0].pm25;    oSpan[8].innerHTML=data[0].index[4].zs;    oSpan[9].innerHTML=data[0].index[1].zs;    oSpan[10].innerHTML=data[0].index[2].zs;    oSpan[11].innerHTML=data[0].index[0].zs;}//根据获取到的数据更改页面中相应的图片function changeImg(data){    var firstImg = document.getElementsByTagName("img")[0];    var firstWeatherId=data.result[0].weatid;    chooseImg(firstWeatherId,firstImg);    var aImg = document.getElementById('future_container').getElementsByTagName('img');    for(var j=0; j<aImg.length; j++){        var weatherId = data.result[j+1].weatid;        chooseImg(weatherId,aImg[j]);    }}//选择图片function chooseImg(id,index){    switch(id){        case '1':            index.src='images/weather_icon/1.png';            break;        case '2':            index.src='images/weather_icon/2.png';            break;        case '3':            index.src='images/weather_icon/3.png';            break;        case '4':        case '5':        case '6':        case '8':        case '9':        case '10':        case '11':        case '12':        case '13':        case '20':        case '22':        case '23':        case '24':        case '25':        case '26':            index.src='images/weather_icon/4.png';            break;        case '7':            index.src='images/weather_icon/6.png';            break;        case '14':        case '15':        case '16':        case '17':        case '18':        case '27':        case '28':        case '29':            index.src='images/weather_icon/5.png';            break;        case '19':        case '21':        case '30':        case '31':        case '32':        case '33':            index.src='images/weather_icon/7.png';            break;        default:            index.src='images/weather_icon/8.png';    }}//根据城市名创建请求数据及urlfunction createUrl(){    var cityName = '';    if(arguments.length == 0) {        cityName = document.getElementById('text').value;    }else{        cityName = arguments[0];    }    // console.log(cityName);    var urls = [];     urls[0] = 'https://sapi.k780.com/?app=weather.future&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json&jsoncallback=getWeather&weaid=' + encodeURI(cityName);    urls[1] = 'https://api.map.baidu.com/telematics/v3/weather?output=json&ak=FK9mkfdQsloEngodbFl4FeY3&callback=getTodayWeather&location=' + encodeURI(cityName);    return urls;}