Question

我正在尝试创建动态src，但无法完成。我认为我缺少了一些东西，该东西会将.png文件收集到src位置的项目中。

查看时，信息为“ SRC = UNKNOWN” 有人有主意吗？

这是我的代码。

function updateweather(){
 var url = "http://192.168.178.29:8080/json.htm?type=devices&rid=96";
 var forecast
 xmlhttp.onreadystatechange = function() {
 if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
 var myArr = JSON.parse(xmlhttp.responseText);
 forecast = myArr.result[0].ForecastStr;
 console.log("Forecast is "+forecast+".")

// myFunction(myArr);
 if (forecast == "Partly Cloudy") {
 document.getElementById("weatherindicator").src = "weatherback-partlycloudy.png";
 }
 if (forecast == "Sunny") {
 document.getElementById("weatherindicator").src = "weatherback-sunny.png";
 }                                                              
 if (forecast == "Rain") {
 document.getElementById("weatherindicator").src = "weatherback-rain.png";
 }              
 if (forecast == "Fog") {
 document.getElementById("weatherindicator").src = "weatherback-fog.png";
 }                              
 if (forecast == "Snow") {
 document.getElementById("weatherindicator").src = "weatherback-snow.png";
 }
 if (forecast == "Cloudy") {
 document.getElementById("weatherindicator").src = "weatherback-cloudy.png";
 }                                              
 }
 }
xmlhttp.open("GET", url, true);
xmlhttp.send();
setTimeout(updateweather,6000);

}

 //-->
</script>


<body>

<div id="weatherdisplay" align="left" class="weatherback"><img id="weatherindicator" src="" /></div>
</body>
</html>

动态src =“”，无法完成

0 个答案: