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Sub ToJson() '创建UTF8文本文件
 myrange = Worksheets("sheet1").UsedRange  '通过有效数据区来选择数据
 'myrange = ActiveWorkbook.Names("schoolinfo").RefersToRange '通过定义的名称来选择数据
 'myrange = Range(Worksheets("sheet1").Range("a1").End(xlDown), Worksheets("sheet1").Range("a1").End(xlToRight)) '通过标题行的最大行最大列来选择数据

Total = UBound(myrange, 1) '获取行数
Fields = UBound(myrange, 2) '获取列数

     Dim objStream As Object
     Set objStream = CreateObject("ADODB.Stream")
     
     With objStream
            .Type = 2
            .Charset = "UTF-8"
            .Open
            .WriteText "{""total"":" & Total & ",""contents"":["
    
            For i = 2 To Total
                .WriteText "{"
                For j = 1 To Fields
                    .WriteText """" & myrange(1, j) & """:""" & Replace(myrange(i, j), """", "\""") & """"
                     If j <> Fields Then
                        .WriteText ","
                     End If
                Next
                If i = Total Then
                        .WriteText "}"
                Else
                        .WriteText "},"
                End If
            Next

            .WriteText "]}"
            .SaveToFile ActiveWorkbook.FullName & ".json", 2
     End With
     Set objStream = Nothing
End Sub