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-- 作者:lgj716330 -- 发布时间:2019/8/17 23:37:00 -- [求助]表达式包含未定义的函数调用 错误提示:表达式包含未定义的函数调用 Average()。 Dim dt As DataTable = DataTables("统计表") Dim filter1,filter2 As String filter1 = "年份 = " & nf1 & " And (" & filter & ")" filter2 = "年份 = " & nf2 & " And (" & filter & ")" Dim lj1 As Double = dt.Compute("Average([工时])",filter1) Dim lj2 As Double = dt.Compute("Average([工时])",filter2)
[此贴子已经被作者于2019/8/17 23:37:13编辑过]
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-- 作者:y2287958 -- 发布时间:2019/8/18 14:02:00 -- Avg(工时) |