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书写并添加js代码。<script src="js/fitty.min.js"></script>

<script>

(function(){  var counter = document.querySelector('.counter');  var diner = document.querySelector('h1');  var menu = ['*', '@', '%', '￥', '#', '^_^'];  var noms = ['nom', 'nom!', 'nom!!', 'nommm', 'nommy'];  var finished = 0;  function jelly(e) {    diner.removeEventListener('fit', jelly);    diner.animate(      [        { transform: 'scale(' + 1 / e.detail.scaleFactor + ')' },        { transform: 'scale(1.1)' },        { transform: 'scale(.9)' },        { transform: 'scale(1.05)' },        { transform: 'scale(.98)' },        { transform: 'scale(1)' }      ],      {        duration:500      }    );  }  // eat animation  function nom(index) {    var nommer = document.getElementById('nommer-' + index);    var rotation = -20 + (Math.random() * 40);    var scale = .75 + (Math.random() * .5);    nommer.animate(      [        { opacity:0, transform: 'scale(' + .25 * scale + ') rotateZ(' + rotation + 'deg) translateY(0) ' },        { opacity:1, transform: 'scale(' + scale + ') rotateZ(' + rotation + 'deg) translateY(-.5em) ' }      ],      {        duration:250      }    );    diner.animate(      [        { transform: 'scaleY(1)' },        { transform: 'scaleY(' + (.7 + (Math.random() * .2)) + ')' },        { transform: 'scaleY(1)' }      ],      {        duration:100      }    );  }  if ('animate' in diner) {    diner.addEventListener('fit', jelly);  }  var dishes = menu  .concat(menu)   .sort(function() { return .5 - Math.random(); })  .concat(['??']) // unfortunately there's no fly emoji  .map(function(menuItem, i) {    var offset = 33.33 + (Math.random() * 33.33);    var dish = document.createElement('div');    dish.textContent = menuItem;    dish.setAttribute('aria-hidden', 'true');    dish.setAttribute('data-nommer', i);    dish.className = 'dish';    dish.style.cssText = 'left:' + offset + '%; transition-delay: ' + ((i * 200) + Math.random() * 100) + 'ms';    var nommer = document.createElement('div');    nommer.id = 'nommer-' + i;    nommer.textContent = noms[Math.floor(Math.random() * noms.length)];    nommer.setAttribute('aria-hidden', 'true');    nommer.className = 'nommer';    nommer.style.cssText = 'left:' + offset + '%; opacity:0;';    counter.appendChild(dish);    counter.appendChild(nommer);    return dish;  });  setTimeout(function() {    requestAnimationFrame(function() {      dishes.forEach(function (dish) {        dish.classList.add('drop');        dish.addEventListener('transitionend', burb);      })    });  }, 500);  function burb(e) {    e.target.removeEventListener('transitionend', burb);    e.target.style.opacity = 0;    finished++;    if (finished === dishes.length) {      full();    }    else if ('animate' in diner) {      nom(e.target.getAttribute('data-nommer'));    }  }  function full() {    fitty(diner, {      minSize:64    });  }}());</script>