React开发（121）:动态表头核心配置 外层绑定key

  <div key={status}>
                <BaseTable
                  rowKey="id"
                  // loading={tableLoading}
                  pageIndex={pageIndex}
                  pageSize={pageSize}
                  total={listAgreementTotal}
                  columns={this.formList[status]}
                  dataSource={listAgreementList}
                  rowSelection={rowSelection}
                  onChange={this.handleChange}
                />
              </div>