首先引用文件

<script type="text/javascript" src="js/jquery.js"></script>
	<script type="text/javascript" src='js/howler.min.js'></script>
	<script type="text/javascript" src='js/tween.min_1.js'></script>
	<script type="text/javascript" src='js/html2canvas.js'></script>
	<script type="text/javascript" src="js/index.js"></script>

爆裂式关闭 带着爆裂声音，核心代码，很棒的特效大家可以学习一下。

Main.prototype.showHints = function(delay) {
      var HIDE_DELAY, HINT2_DELAY, it;
      it = this;
      HIDE_DELAY = 5000;
      HINT2_DELAY = 200;
      this.hint1T = new TWEEN.Tween({
        p: 0
      }).to({
        p: 1
      }, 500).onUpdate(function() {
        return it.$hint1.css({
          opacity: this.p
        });
      }).delay(delay).start();
      this.hint2T = new TWEEN.Tween({
        p: 0
      }).to({
        p: 1
      }, 500).onUpdate(function() {
        return it.$hint2.css({
          opacity: this.p
        });
      }).delay(delay + HINT2_DELAY).start();
      return this.hintHideT = new TWEEN.Tween({
        p: 0
      }).to({
        p: 1
      }, 500).onUpdate(function() {
        it.$hint1.css({
          opacity: 1 - this.p
        });
        return it.$hint2.css({
          opacity: 1 - this.p
        });
      }).delay(delay + HINT2_DELAY + HIDE_DELAY).start();
    };

    Main.prototype.showModal = function(isFirst) {
      var tm;
      if (isFirst) {
        tm = setTimeout((function(_this) {
          return function() {
            _this.$modal.find('input').val('');
            return clearTimeout(tm);
          };
        })(this), 10);
      }
      this.initEffectTweens(isFirst);
      return this.showModalT.start();
    };

    Main.prototype.listeners = function() {
      var $input;
      this.$showModal.on('click', (function(_this) {
        return function() {
          return _this.showModal();
        };
      })(this));
      this.$modal.on('keyup', 'input', function(e) {
        var $it, k, text;
        $it = $(e.target);
        text = $it.val();
        $it.toggleClass('is-fill', !!text);
        if ($it.attr('type') === 'text') {
          text = text.replace(/\s/g, '');
        }
        k = e.keyCode;
        if ((k > 48 && k < 90) || (k === 48 || k === 45 || k === 32)) {
          return $it.val(text);
        }