code: function () {
              this.container.innerHTML = '';
              this.list = document.createElement('ul');
              this.clearFloat = document.createElement('li');
  
              domUtils.addClass(this.list, 'list');
              domUtils.addClass(this.clearFloat, 'clearFloat');
  
              this.list.id = 'imageListUl';
              this.list.appendChild(this.clearFloat);
              this.container.appendChild(this.list);
          }
docs: /* 初始化容器