JSON (仅限本地)

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<script type="text/javascript">  setInterval(function() {     $("#content").load(location.href+" #content>*",""); }, 2000); </script>   <script type="text/javascript"> var xmlhttp = new XMLHttpRequest(); var url = "http://www.weather.com.cn/data/sk/101110101.html";   xmlhttp.onreadystatechange=function() {     if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {         myFunction(xmlhttp.responseText);     } } xmlhttp.open("post", url, true); xmlhttp.send();   function myFunction(response) {     obj = JSON.parse(response);   document.getElementById("demo").innerHTML =   obj.weatherinfo.city + " " + obj.weatherinfo.cityid; }   </script>

　　<i id="demo">

 

 

{"weatherinfo":{"city":"西安","cityid":"101110101","temp":"7","WD":"东风","WS":"2级","SD":"21%","WSE":"2","time":"15:00","isRadar":"1","Radar":"JC_RADAR_AZ9290_JB","njd":"27400","qy":"985"}}