JQuery hanya melaksanakan tatal lancar pautan anchor_jquery

<a id="turnToContent" href="#content"></a>

<div id="content">
<h2>
<a href="###">HTML5</a>
</h2>
<p>
html5html5html5
</p>
<p class="addMes">标签： <span>HTML5</span><small>2015年4月19日</small></p>
</div>

$('#turnToContent').click(function () {
$('html, body').animate({
scrollTop: $($.attr(this, 'href')).offset().top
}, 500);
return false;
});

$(function(){  
  $('a[href*=#],area[href*=#]').click(function() {
    if (location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') && location.hostname == this.hostname) {
      var $target = $(this.hash);
      $target = $target.length && $target || $('[name=' + this.hash.slice(1) + ']');
      if ($target.length) {
        var targetOffset = $target.offset().top;
        $('html,body').animate({
          scrollTop: targetOffset
        },
        1000);
        return false;
      }
    }
  });
})