<title>W3xue教程(w3xue.com)</title>
var text = '{ "name":"W3xue", "alexa":"function () {return 10000;}", "site":"www.w3xue.com"}';
var obj = JSON.parse(text);
obj.alexa = eval("(" + obj.alexa + ")");
document.getElementById("demo").innerHTML = obj.name + " Alexa 排名:" + obj.alexa();