code: function(data) {
          var headEnabled = false;
          if (this.rowSpan === 1) {
              this.$tableBody.find('tr[class!="sum"]').each(function(index, tr) {
                  var td = $('<td width="24" align="center" class="select-col"><input type="checkbox" title=" "></td>');
                  $(this).prepend(td);
                  if (data[index].disabledSelect) {
                      $(this).addClass('select-disabled');
                      td.find(':checkbox').prop('disabled', true);
                  } else {
                      headEnabled = true;
                  }
              });
          } else {
              var self = this,
                  dataIndex = 0;
              this.$tableBody.find('tr[class!="sum"]').each(function(index, tr) {
                  if ((index + self.rowSpan) % self.rowSpan === 0) {
                      var td = $('<td width="24" align="center" class="select-col" rowspan="' + self.rowSpan + '"><input type="checkbox" title=" "></td>');
                      $(this).prepend(td);
                      if (data[dataIndex].disabledSelect) {
                          $(this).addClass('select-disabled');
                          td.find(':checkbox').prop('disabled', true);
                      } else {
                          headEnabled = true;
                      }
                      dataIndex++;
                  }
              });
          }
  
          var th = $('<th nowrap width="24" class="select-col"><input type="checkbox" title=" "></th>');
          this.$tableHead.find('tr').prepend(th);
          if (!headEnabled) {
              th.find(':checkbox').prop('disabled', true);
          }
  
          this.$main.find(':checkbox').bizCheckbox({
              theme: 'gray'
          });
      }
docs: 创建 Checkbox 控件
  @param {Array} data 数据
  @private