script
    url = location.search.substr(1);
    if(url.length 0)
    {
      ar = url.split(/[&=]/);
      for(i=0;iar.length;i+=2)
      {
        alert("参数:"+ar[i]+":"+ar[i+1]+"br");
      }
    }   
/script
a href='？a=你好&room=awe'test/a