使用location.方法的时候不显示

 <script type="text/javascript">

// 对象属性

    // location.href  :获取当前网页的 URL

     document.write("<br>"+"1:"+location.href);

     document.write("<br>"+"2:"+location.hostname);

     document.write("<br>"+"3:"+location.host);

     document.write("<br>"+"4:"+location.hash);

     document.write("<br>"+"5:"+location.pathname);

     document.write("<br>"+"6:"+location.protocol);

     document.write("<br>"+"7:"+location.search);

//  对象方法：（为什么不显示呢）

     document.write("<br>"+"12:"+location.assign());

     document.write("<br>"+"13:"+location.reload());

     document.write("<br>"+"14:"+location.replace());

 </script>