code: function() {
          this.$main.find('button').bizButton({
              theme: this.options.theme
          });
  
          var me = this;
          this.$main.on('click.bizTransferMoveRight', '.biz-transfer-move-right', function(e) {
              var selected = me.$leftListBody.find(':checked');
              if (selected.length > 0) {
                  me.moveRight(selected, e);
              }
          }).on('click.bizTransferMoveLeft', '.biz-transfer-move-left', function(e) {
              var selected = me.$rightListBody.find(':checked');
              if (selected.length > 0) {
                  me.moveLeft(selected, e);
              }
          });
      }
docs: 创建 Button
  @private