js采集：新浪微博标签采集
第一步加载js

/*加载jq*/var _doc=document.getElementsByTagName('head')[0];var script=document.createElement('script');  script.setAttribute('type','text/javascript');  script.setAttribute('src','http://lib.sinaapp.com/js/jquery/1.7.2/jquery.min.js');  _doc.appendChild(script); 

第二步

var tags=[];var run=1;function get_tags(){console.log("start:"+run);console.log("tag num:"+tags.length);$.get("http://account.weibo.com/set/aj/tagsuggest?__rnd=1384928386600",{},function(data){    for(var i in data['data']){        tags.push(data['data'][i]['tag']);    }    run++;    if(run<500){    setTimeout(get_tags,300);    }},"json");}

第3步

console.log(tags.join(","))

新浪的标签大概有700多个，采集下来需要去重