Hi Hu,
If you're trying to sort by the {DataTable_SHUIPING.周期} field, here's what you need to do:
1) Insert a Crosstab. Add the {DataTable_SHUIPING.周期} as a Row.
2) Next, add the {DataTable_SHUIPING.日期} as the second field under the Crosstab's Row
4) Add the field you've added under the 'Show Values section' of the Chart as the Summary Field and use the same summary function you've used in the Chart
5) Highlight field 1 in the Row of the Crosstab > Options > Options tab > Click 'Customize Group Name Field' > Click 'Use a formula' and use this code:
totext({DataTable_SHUIPING.周期},0) & "(" & totext(Date({DataTable_SHUIPING.日期})) & ")"
6) Right-click the Crosstab > Insert Chart > Change the Chart Type as required.
-Abhilash