主题：如何实现统计不同性别的不同年龄段的数量？

比如

b.Totals.AddExp("分布_21到25","iif(分数 >= 21 And 分数 <= 25,1,0)")

如果不会做，上传具体项目

参考代码

Dim dr As DataRow = e.DataRow
Dim dt As DataTable =DataTables("糖尿病")
If e.DataCol.Name = "性别" And dr.IsNull("性别") = False Then
    Dim d As Date = Date.Today
    Dim filter As String = "出生年月 >= #" & d.AddYears(-15) & "# and 出生年月 < #" & d & "#"
    dr("糖尿病年龄分布_0到15岁") = dt.Compute("Count(性别)", "性别 = '" & e.DataRow("性别") & "' and " & filter)
    filter = "出生年月 >= #" & d.AddYears(-20) & "# and 出生年月 < #" & d.AddYears(-15) & "#"
    dr("糖尿病年龄分布_15到20岁") = dt.Compute("Count(性别)", "性别 = '" & e.DataRow("性别") & "' and " & filter)
    filter = "出生年月 >= #" & d.AddYears(-25) & "# and 出生年月 < #" & d.AddYears(-20) & "#"
    dr("糖尿病年龄分布_21到25岁") = dt.Compute("Count(性别)", "性别 = '" & e.DataRow("性别") & "' and " & filter)
End If

用年龄更加简单

Dim dr As DataRow = e.DataRow
Dim dt As DataTable =DataTables("糖尿病")
If e.DataCol.Name = "性别" And dr.IsNull("性别") = False Then
    Dim d As Date = Date.Today
    Dim filter As String = "年龄 >= 0 and 年龄 < 15"
    dr("糖尿病年龄分布_0到15岁") = dt.Compute("Count(编号)", "性别 = '" & e.DataRow("性别") & "' and " & filter)
    filter = "年龄 >= 15 and 年龄 < 20"
    dr("糖尿病年龄分布_15到20岁") = dt.Compute("Count(性别)", "性别 = '" & e.DataRow("性别") & "' and " & filter)
End If

dr("最大年龄") = dt.Compute("max(年龄)", "性别 = '" & e.DataRow("性别") & "'")